# A357966 (b-file synthesized from sequence entry) 0 1 1 0 2 0 3 6 4 0 5 60 6 360 7 840 8 20160 9 75600 10 1058400 11 10311840 12 79833600 13 1305944640 14 11018367360 15 174616041600 16 2150397849600 17 28661419987200 18 473667677683200 19 6293779652160000 20 114484773731328000 21 1766543101087564800 22 31640707215390873600