found before ?

[science_man_88]

Originally Posted by Jens K Andersen

Your original code with forprime and without the unused a would be:

forprime(x=1,1000,if((isprime(x+2) || isprime(x-2)),print1(x%10",")))

For visual pattern examination I would skip the larger prime in a pair and the comma:

forprime(x=1,2000,if(isprime(x+2),print1(x%10)))

Output:

3517919117799177991179111997199177191911197919711779771717197

A short sequence will usually have some things repeating more often than others but I don't expect any recognizable pattern in a much longer sequence. If you want to do serious research then you have to make a program to count different occurrences over a much longer interval than anybody would count manually. I wouldn't personally post an analysis of anything below an interval up to 10^12 but I can program in C and often recompute the primes to 10^12 or more (there are too many to store for me). In PARI/GP you may have to settle with less if you want results in a reasonable time.

I know C as well I just suck at it lol I have quite a bit of room for storing some room on a ipod some room on a usb stick some more on my main drive and some more on a portable the same size as my harddrive (I don't use to much room on them all) 443 + gb free on all of them and i could get more free. oh did I mention I have a lot of google groups I don't use 7 gb there I think (according to my sisters boyfriend it's against google tos(there own fault for allowing up to 5 google groups a week (which i haven't done in a while)))

[science_man_88]

I missed a few but something stopped me from editing after the 15 minutes (last check it was supposed to be an hour)I see that I was wrong about 79 after or before 9113 but maybe there's a this will overlap this other one pattern.

[science_man_88]

a(n)=a(n)%(b+a) a>5 to more than n=2 if my calculations are right could this be used at all or is it just more useless stuff (nothing new)

[kar_bon]

What is now a(n)?
What means "%"? Modulo? '%' is used in program languages, math uses 'mod'!
What is b?

Please, again, explain your formulas: What range is which variable, examples, perhaps a sentence which discribes the formula with words.

Nobody will/can help you if you post only a line of whatever! Nobody can read your minds!

[science_man_88]

a(n) is showing a sequence if i use OEIS notation I think % is modulo good guess b is effectively n a is a variable which if i did the math right works over 5 because no entry is greater than n+5 so it's useless.

e.g.

a(1) = 3mod(1+5) = 3

...

since a(3) = 7 since 3 + 4 = 7 mod would give something other than 7 for a<5 so a<5 doesn't work out .

[kar_bon]

Originally Posted by science_man_88

a(n) is showing a sequence if i use OEIS notation I think % is modulo good guess b is effectively n a is a variable which if i did the math right works over 5 because no entry is greater than n+5 so it's useless.

You think "%" means modulo? You're not sure? How can you then use such notation?

And some punctuation would be helpful, too!

I even don't know much more than before! Give an example.

[science_man_88]

karbon % is modulo lets just put it at that I gave an example why it's useless you can't figure it out ............................................................................................................................................................

[kar_bon]

OK, i give up!

Good luck with others who should help you here!

[CRGreathouse]

Be nice, % is pretty well-known to mean modulo.

Originally Posted by science_man_88

this of any more help CRG ? I went back and found a few more of the ones highlighted with underline color and bold (which i can't detect in code)

I want to know your conclusions, not the data.

[science_man_88]

CRG the only conclusion so far is that ,9,1,1,3, won't always be preceeded or followed by ,7,9,

though it does 62.5% of the time my rtf file made from the text.

[CRGreathouse]

Originally Posted by science_man_88

CRG the only conclusion so far is that ,9,1,1,3, won't always be preceeded or followed by ,7,9,

though it does 62.5% of the time my rtf file made from the text.

Find all the possibilities for twin primes mod 30. Use this to calculate the expected number of times ,9,1,1,3, is either followed or preceded by 7,9. Is 62.5% unusual?