# A187556 (b-file synthesized from sequence entry) 0 1 1 0 2 1 3 0 4 1 5 1 6 0 7 2 8 9 9 1 10 0 11 6 12 77 13 36 14 1 15 0 16 24 17 750 18 875 19 100 20 1 21 0 22 120 23 8494 24 20250 25 5525 26 225 27 1 28 0 29 720 30 111132 31 488824 32 257250 33 24500 34 441 35 1 36 0 37 5040 38 1659636 39 12685512 40 11514069 41 2058000 42 85652 43 784 44 1 45 0 46 40320 47 27943920 48 357325100 49 522796680 50 156042999 51 12002256 52 252252 53 1296 54 1 55 0 56 362880 57 524580336 58 10941291000 59 24681106400 60 11453045625 61 1444332771 62 55566000 63 652500 64 2025 65 1