# A155795 (b-file synthesized from sequence entry) 0 1 1 1 2 1 3 1 4 2 5 1 6 1 7 6 8 6 9 1 10 1 11 24 12 24 13 24 14 1 15 1 16 120 17 0 18 0 19 120 20 1 21 1 22 720 23 0 24 0 25 0 26 720 27 1 28 1 29 5040 30 0 31 0 32 0 33 0 34 5040 35 1 36 1 37 40320 38 0 39 0 40 0 41 0 42 0 43 40320 44 1 45 1 46 362880 47 0 48 0 49 0 50 0 51 0 52 0 53 362880 54 1 55 1 56 3628800 57 0 58 0 59 0 60 0 61 0 62 0 63 0 64 3628800 65 1