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[fivemack]

I'm running eight sequences in Christophe Clavier's range; not quite sure what termination condition I use, it's something like 'hard C150' but I've gone past that a couple of times.

3270 i581    155 2^5*3*7
3678 i2904  143 2^2*7
4380 i2158  141 2^2 (persistent 5)
5748 i1313  149 2^2*3*5*7 (also ouch)
6822 i4037  146 2^4*3^3*5*31 (another ouch)
8184 i1649  154 2^3*3*5
8352 i1598  146 2^2*3*7
9282 i773    140 2^2
9336 i1086  152 2^6*3^2*127

[Andi47]

Originally Posted by fivemack

9336 i1086 152 2^6*3^2*127

*very* ouch.

[Andi47]

10212 is currently at step 2309 with 2*57 (stuck on the DB, the DB doesn't split the 57 into 3*19 )

[Batalov]

Originally Posted by Andi47

10212 is currently at step 2309 with 2*57 (stuck on the DB, the DB doesn't split the 57 into 3*19 )

This is a new downdriver!

[Andi47]

Originally Posted by Batalov

This is a new downdriver!

It's a stealth 2*3 driver.

[schickel]

04/17/10
  Seq   Index  Size  Co-factor   Driver/Guide
171018   1987   127    119       2
363270   1680   147    140       2^5 * 3
604560   2563   134    124       2^2

I'll be concentrating on 171018 until it resolves.....

[unconnected]

15390 acquired boring 2*3 driver after nice downdriver run from 136 to 60 digits for 400 indexes. Anyway I'll push it to 110 digits.

[schickel]

From 171018:

 2081 .	 c110 = 2 * 17362462655462429099716292080924570786111876160674014548306518255201658121158240285386753011210426023180658089
 2082 .	 c110 = 2^2 * 32611 * 57737 * 2305329472610808330201175577204180497043890360304963044777588370613011131514829133055570434961732689

[schickel]

05/09/10
  Seq   Index  Size  Co-factor   Driver/Guide
171018   2153   113     97       2^5 * 3^3
363270   1681   147    114       2^5 * 3
604560   2569   134    103       2^2 * 3^2 * 5^2

I may pull the trigger on these when I hit 150 digits....363270 is getting a little big to handle myself; and unfortunately 171018 has decided to step on the accelerator.

[Greebley]

I had a sequence get up to index 5141 (791220). It unfortunately has one of the worst drivers and is unlikely to escape. Otherwise things have been rather dull. Here is a complete list. I will likely retire the 2^3*3 sequences at 120 digits.

Status on May 21, 2010:
1) 14994 - Index 1827, 123 Digits, 2^5, c107
2) 26820 - Index 2271, 115 Digits, 2^2*3, c113
3) 32280 - Index 2265, 121 Digits, 2^2, c105
4) 39012 - Index 1450, 123 Digits, 2^7, c110
5) 39060 - Index 1051, 128 Digits, 2^5*3^4, c115
6) 511728 - Index 1428, 132 Digits - 2^2*3, c123
7) 511734 - Index 713, 110 Digits - 2^4, c80
8) 527436 - Index 1345, 110 Digits - 2^13*3^2, c105
9) 527640 - Index 1192, 98 Digits - 2^4*3, c78 - Broken in db
10) 709420 - Index 2067, 108 Digits, 2*3*3, c98
11) 733866 - Index 1441, 131 Digits, 2^4*3^2, c105
12) 748350 - Index 1032, 121 Digits, 2^4, c90
13) 748356 - Index 1104, 125 Digits, 2^5*3^2*5, c110
14) 763668 - Index 1156, 117 Digits, 2^3*7, c95 - Broken in db at 963
15) 791220 - Index 5141, 115 Digits, 2^2*3^3*5*7, c99
16) 803236 - Index 543, 116 Digits, 2^3*3, c106
17) 809352 - Index 523, 124 Digits, 2^2, c120
18) 816792 - Index 1023, 109 Digits, 2^2*5, c89
19) 823134 - Index 1735, 108 Digits, 2^4, c105
20) 827880 - Index 1177, 121 Digits, 2^3*5*7, c101
21) 837480 - Index 1313, 117 Digits, 2^2*3^3, c102

[schickel]

Ugh....

05/09/10
  Seq   Index  Size  Co-factor   Driver/Guide
171018   2224   135    114       2^5 * 3
363270   1692   150     99       2^5 * 3
604560   2579   136    122       2^2 * 3^3

Can't seem to get rid of 2^5 * 3 . . . . .