# A148235 (b-file synthesized from sequence entry) 0 1 1 1 2 2 3 4 4 13 5 35 6 118 7 341 8 1222 9 3871 10 14095 11 46182 12 172636 13 588711 14 2213167 15 7681235 16 29298637 17 104046951 18 397960363 19 1428060581 20 5509869249 21 20062858933 22 77534482146 23 284269944662 24 1104891547397 25 4091541637473 26 15918933390799 27 59235013814143 28 231394948623317 29 867248153419761 30 3390021144010261