# A092592 (b-file synthesized from sequence entry) 1 1 2 1 3 3 4 8 5 250 6 2700 7 252105 8 39337984 9 46664771328 10 12859560000000 11 100271725559775000 12 155537541908508672000 13 8147102459616398435002560 14 1112629444624748831692923019008 15 198709463856994388404947123486328125