# A103904 (b-file synthesized from sequence entry) 1 0 2 2 3 24 4 384 5 10240 6 491520 7 44040192 8 7516192768 9 2473901162496 10 1583296743997440 11 1981583836043018240 12 4869940435459321626624 13 23574053482485268906770432 14 225305087149939210031640608768