# A100023 (b-file synthesized from sequence entry) 0 1 1 2 2 33 3 415 4 5198 5 49274 6 362191 7 2127283 8 10415371 9 43855201 10 162942160 11 544750425 12 1664602301 13 4706957039 14 12441105905 15 30990626912 16 73251661498 17 165232613947 18 357406368959 19 744394713024 20 1498152895495 21 2922476743386 22 5540491429760 23 10232097731194