# A137785 (b-file synthesized from sequence entry) 1 0 2 1 3 6 4 0 5 1 6 0 7 18 8 0 9 1 10 96 11 0 12 36 13 0 14 1 15 0 16 480 17 0 18 60 19 0 20 1 21 2880 22 0 23 1440 24 0 25 90 26 0 27 1 28 0 29 20160 30 0 31 3360 32 0 33 126 34 0 35 1 36 161280 37 0 38 80640 39 0 40 6720 41 0 42 168 43 0 44 1 45 0 46 1451520 47 0 48 241920 49 0 50 12096 51 0 52 216 53 0 54 1 55 14515200 56 0 57 7257600 58 0 59 604800 60 0 61 20160 62 0 63 270 64 0 65 1