# A104264 (b-file synthesized from sequence entry) 1 3 2 6 3 19 4 44 5 136 6 376 7 1061 8 2985 9 8431 10 24009 11 67983 12 193359 13 549697 14 1563545 15 4446173 16 12650545 17 35999714 18 102439796 19 291532841 20 829634988 21 2360947327 22 6719171580 23 19122499510 24 54423038535 25 154888366195