# A024953 (b-file synthesized from sequence entry) 1 1 2 1 3 6 4 6 5 6 6 42 7 78 8 114 9 366 10 870 11 1806 12 4470 13 10374 14 29490 15 70422 16 172050 17 443670 18 1203270 19 3079590 20 7634310 21 19822470 22 53513466 23 138825006 24 355353522 25 932324478 26 2521602582 27 6627329070 28 17259334422 29 45447231174 30 124012157154 31 328387674390