# A017621 (b-file synthesized from sequence entry) 0 32768 1 3200000 2 33554432 3 164916224 4 550731776 5 1453933568 6 3276800000 7 6590815232 8 12166529024 9 21003416576 10 34359738368 11 53782400000 12 81136812032 13 118636749824 14 168874213376 15 234849287168