# A138134 (b-file synthesized from sequence entry) 0 0 1 5 2 60 3 670 4 7435 5 82460 6 914500 7 10141965 8 112476120 9 1247379290 10 13833648315 11 153417510760 12 1701426266680 13 18869106444245 14 209261597153380 15 2320746675131430 16 25737475023599115 17 285432971934721700 18 3165500166305537820