"aba" is a number of the following form,

**aba(a,b,n)** = aba...aba = **((10a+b)*10 ^{(2n+1)}-(a+10b))/99**

where b is not equal to a.

For example, in case of '191',

191

19191

1919191

...

This data is a good touchstone for SNFS.

- a=1..9, b=1..9 (where b is not equal to a)
- n=1..100
- All numbers were checked with ECM-GMP, B1=5e4, 240 curves, B1=25e4, 500 curves and B1=1e6, 1100 curves

aba factors last update remaining 12 is equal to 133..331/11, see near rep-digit numbers 3 is equal to 144..441/11, see near rep-digit numbers 4 is equal to 155..551/11, see near rep-digit numbers 5 is equal to 166..661/11, see near rep-digit numbers 6 is equal to 177..771/11, see near rep-digit numbers 7 is equal to 188..881/11, see near rep-digit numbers 8 is equal to 199..991/11, see near rep-digit numbers 9Sep. 16, 2012 8 21Apr. 18, 2009 4 3Jan 19, 2009 10 4 is equal to 121..121 * 2, see aba(1,2,n) 5Mar. 09, 2009 10 6 is equal to 131..131 * 2, see aba(1,3,n) 7Nov. 03, 2008 11 8 is equal to 141..141 * 2, see aba(1,4,n) 9Aug. 30, 2009 7 31 is equal to 344..443/11, see near rep-digit numbers 2 is equal to 355..553/11, see near rep-digit numbers 4 is equal to 377..773/11, see near rep-digit numbers 5 is equal to 388..881/11, see near rep-digit numbers 6 is equal to 121..121 * 3, see aba(1,2,n) 7Jul. 13, 2009 8 8Jul. 29, 2009 6 9 is equal to 131..131 * 3, see aba(1,3,n) 41Mar. 21, 2009 6 2 is equal to 212..212 * 2, see aba(2,1,n) 3Nov. 10, 2008 7 5Oct. 10, 2008 8 6 is equal to 232..232 * 2, see aba(2,3,n) 7Dec. 08, 2008 8 8 is equal to 121..121 * 4, see aba(1,2,n) 9Dec. 01, 2008 9 51Nov. 10, 2008 9 2Jun. 14, 2009 4 3Sep. 08, 2008 5 4Jun. 02, 2008 8 6Mar. 21, 2009 10 7Jul. 02, 2009 8 8Sep. 12, 2009 6 9Apr. 13, 2009 9 61Jun. 20, 2009 5 2 is equal to 313..313 * 2, see aba(3,1,n) 3 is equal to 212..212 * 3, see aba(2,1,n) 4 is equal to 323..323 * 2, see aba(3,2,n) 5Feb. 16, 2009 7 7Aug. 09, 2009 6 8 is equal to 343..343 * 2, see aba(3,4,n) 9 is equal to 232..232 * 3, see aba(2,3,n) 71is equal to 788..887/11, see near rep-digit numbers 2 is equal to 799..997/11, see near rep-digit numbers 3Oct. 04, 2008 7 4Sep. 08, 2008 11 5Apr. 26, 2009 8 6Jan. 12, 2009 6 8May 12, 2009 9 9Feb. 09, 2009 8 81Mar. 16, 2009 10 2 is equal to 414..414 * 2, see aba(4,1,n) 3Dec. 30, 2008 7 4 is equal to 212..212 * 4, see aba(2,1,n) 5Sep. 01, 2008 6 6 is equal to 434..434 * 2, see aba(4,3,n) 7Jul. 28, 2008 3 9Jun. 01, 2009 8 91Jul. 18, 2009 7 2May 21, 2009 5 3 is equal to 313..313 * 3, see aba(3,1,n) 4Oct. 10, 2008 8 5Jul. 29, 2009 6 6 is equal to 323..323 * 3, see aba(3,2,n) 7Feb. 23, 2009 5 8Jan. 30, 2009 7

E-mail : kc2h-msm@asahi-net.or.jpHisanori Mishima