# A179456 (b-file synthesized from sequence entry) 0 1 1 1 2 2 3 1 4 6 5 5 6 1 7 24 8 23 9 9 10 1 11 120 12 119 13 68 14 14 15 1 16 720 17 719 18 517 19 152 20 20 21 1 22 5040 23 5039 24 4163 25 1581 26 292 27 27 28 1 29 40320 30 40319 31 36180 32 16776 33 3917 34 508 35 35 36 1 37 362880 38 362879 39 341733 40 186030 41 52029 42 8489 43 823 44 44 45 1