Post status updates here

[gd_barnes]

Here's another one from the "shortest sequences" posting shown in my last status. I've extended 171240 a little bit and am done with it. Status:

171240; i=303; sz 108; C105; +10; 2^3*3*5^2

I'm trying to get all of those to i>300.

[gd_barnes]

Another from the "shortest sequences" list. I've extended 199560 a little and am done with it. Status:

199560; i=308; sz 109; C101; +19; 2^3*3*5

[gd_barnes]

Yet another from the "shortest sequences" list. I've extended 147978 a little and am done with it. Status:

147978; i=316; sz 109; C105; +28; 2^3*3*5

[gd_barnes]

I am now done with 121338. Status:

121338; i=1107; sz 108; C107; +89; 2*3

[gd_barnes]

More from the "shortest sequences" list. I've extended 117432 a little and am done with it. Status:

117432; i=331; sz 117; C106; +46; 2^3*3*5^2


There are two more that I will be working on from that list that are still at i<300. Then it will be on to my recent "long sequence" reservations.

[gd_barnes]

I am now done with 646296. Status:

646296; i=3594; sz 112; C104; +199; 2^2*3*7

[schickel]

10/28/09
  Seq   Index  Size  Co-factor   Driver/Guide
 29772   1032   131    122       2   <--nfs in progress for the c122 :cry:
 88662   2183   124    117       2^5
123960   1795   109     99       2^2
170196   1721   135    126       2^3
171018   1825   115    113       2^4 * 3
363270   1620   134    112       2^8 * 3
479632   1314   125    114       2^3 * 5 * 7
604560   2462   129    122       2^6

[gd_barnes]

More from the "shortest sequences" list. I've extended 111624 a little and am done with it. Status:

111624; i=321; sz 114; C108; +43; 2*3


With this advance, I was able to get rid of the nasty 2^5*3*7 driver in favor of the 2*3 driver. It's the first one from that list that I was finally able to get rid of the main driver. Although 2*3 doesn't help things much, at least it doesn't increase it's size so drastically every index.

[10metreh]

Syd's 162126 has advanced to 171 digits after a c157 split as p64 * p93. It now has a c165. I imagine that Syd could do a c180 if he wanted to, so having already become the first sequence to reach 170 digits, will it get to 180, 190 or even 200?

[gd_barnes]

Here is the last one from the "shortest sequences" list. I've extended 102360 quite a bit more than the others and am done with it. Status:

102360; i=365; sz 119; C105; +83; 2^6


Everyone pay attention now. This sequence NO LONGER HAS A DRIVER! This is the first and only one from that list that I was able to drop the very tenacious driver that each of those sequences had. It is currently guided by 2^6. So if you have some decent resources and can carry on from 119 digits, you could find a very high down-driver!

Now...back to my "real" reservations.

(caps for emphasis, not yelling)


Gary

[unconnected]

c113 from 842592:6669 was cracked by ECM as p56*p57

Factor=39659056817298977052313431042539933940395678655080862877 Method=ECM B1=11000000 Sigma=4281364321

Now it is the 5th longest sequence and there is no driver - size 124, 2^2 guide.