# A351791 (b-file synthesized from sequence entry) 0 1 1 1 2 1 3 1 4 1 5 2 6 1 7 1 8 0 9 6 10 1 11 1 12 -2 13 -3 14 24 15 1 16 1 17 -4 18 -6 19 -4 20 120 21 1 22 1 23 -6 24 -3 25 40 26 25 27 720 28 1 29 1 30 -8 31 6 32 132 33 120 34 114 35 5040 36 1 37 1 38 -10 39 21 40 248 41 -375 42 -1872 43 -287 44 40320 45 1 46 1 47 -12 48 42 49 364 50 -2120 51 -8298 52 -3920 53 -4152 54 362880 55 1 56 1 57 -14 58 69 59 456 60 -5655 61 -12144 62 86121 63 155776 64 -1647 65 3628800