# A265607 (b-file synthesized from sequence entry) 0 1 1 0 2 1 3 0 4 1 5 2 6 0 7 2 8 9 9 6 10 0 11 6 12 50 13 72 14 24 15 0 16 24 17 350 18 850 19 600 20 120 21 0 22 120 23 3014 24 11250 25 12900 26 5400 27 720 28 0 29 720 30 31164 31 170618 32 286650 33 191100 34 52920 35 5040 36 0 37 5040 38 378888 39 2962736 40 6909784 41 6585600 42 2869440 43 564480 44 40320