# A193897 (b-file synthesized from sequence entry) 0 1 1 2 2 1 3 3 4 6 5 3 6 4 7 9 8 12 9 6 10 5 11 12 12 18 13 20 14 10 15 6 16 15 17 24 18 30 19 30 20 15 21 7 22 18 23 30 24 40 25 45 26 42 27 21 28 8 29 21 30 36 31 50 32 60 33 63 34 56 35 28 36 9 37 24 38 42 39 60 40 75 41 84 42 84 43 72 44 36 45 10 46 27 47 48 48 70 49 90 50 105 51 112 52 108 53 90 54 45 55 11 56 30 57 54 58 80 59 105 60 126 61 140 62 144 63 135 64 110 65 55 66 12 67 33