# A176857 (b-file synthesized from sequence entry) 0 1 1 3 2 4 3 14 4 48 5 191 6 776 7 3271 8 14062 9 61601 10 273796 11 1232248 12 5604252 13 25718825 14 118949392 15 553888342 16 2594626912 17 12218698001 18 57812767484 19 274701432034 20 1310257145600 21 6271273757973 22 30110943889096 23 144992416476339