# A365340 (b-file synthesized from sequence entry) 0 1 1 1 2 8 3 132 4 3360 5 116280 6 5100480 7 271252800 8 16963914240 9 1220096908800 10 99225500774400 11 9003984596006400 12 901928094049382400 13 98856066097780992000 14 11768525894839633920000 15 1512185803617951221760000 16 208598907329474462760960000