# A173224 (b-file synthesized from sequence entry) 0 0 1 1 2 6 3 87 4 4288 5 433045 6 70899306 7 16947087955 8 5544027333440 9 2372735984247009 10 1284753824984593630 11 857573459327085778431 12 691208427837113229333984 13 661423852799242010825878453