# A374858 (b-file synthesized from sequence entry) 0 2 1 3 2 24 3 240 4 4200 5 110880 6 4572288 7 288812160 8 28141344000 9 4231979136000 10 986721354178560 11 357978242151129600 12 202881784891968000000 13 180248848162914585600000 14 251851399750851061045248000 15 554999919804958202694991872000 16 1933790758313726593648946202624000