# A304454 (b-file synthesized from sequence entry) 0 0 1 1 2 1 3 2 4 5 5 15 6 51 7 191 8 773 9 3338 10 15243 11 73131 12 366815 13 1916260 14 10394665 15 58404853 16 339223859 17 2033188222 18 12556915219 19 79807729238 20 521399203037 21 3497978659977 22 24076009827669 23 169865542733652 24 1227553152971419 25 9079751310622581 26 68692742886823205