# A168644 (b-file synthesized from sequence entry) 0 1 1 1 2 1 3 1 4 10 5 1 6 1 7 12 8 12 9 1 10 1 11 12 12 18 13 12 14 1 15 1 16 10 17 20 18 20 19 10 20 1 21 1 22 12 23 45 24 65 25 45 26 12 27 1 28 1 29 14 30 63 31 140 32 154 33 63 34 14 35 1 36 1 37 16 38 84 39 224 40 350 41 252 42 84 43 16 44 1 45 1 46 18 47 108 48 336 49 630 50 630 51 384 52 108 53 18 54 1 55 1 56 20 57 135 58 480 59 1050 60 1260 61 1050 62 555 63 135 64 20 65 1