# A113715 (b-file synthesized from sequence entry) 0 1 1 2 2 5 3 18 4 89 5 546 6 3893 7 31210 8 276393 9 2674346 10 28053749 11 317122018 12 3843832473 13 49745582994 14 684808185109 15 9994279232186 16 154164863607273 17 2506527296803674 18 42846740489105301 19 768278266512841330