# A136456 (b-file synthesized from sequence entry) 1 1 2 0 3 1 4 1 5 -2 6 1 7 6 8 -13 9 8 10 -1 11 720 12 -1566 13 973 14 -128 15 1 16 3628800 17 -7893360 18 4905486 19 -646093 20 5168 21 -1 22 1316818944000 23 -2864346105600 24 1780110653040 25 -234459133326 26 1876009933 27 -368048 28 1 29 52563198423859200000 30 -114335531944833024000 31 71056323779613177600 32 -9358860113257929840