# A061697 (b-file synthesized from sequence entry) 0 1 1 0 2 0 3 1 4 1 5 1 6 201 7 1226 8 5587 9 493333 10 8910253 11 109739620 12 6832444928 13 251336859489 14 6402632091649 15 369288128260091 16 21333939590516867 17 941843896620169405 18 60266201588496408645 19 4623833509894543300868 20 309412778502377193367456 21 24102475277979402591991181