# A108198 (b-file synthesized from sequence entry) 0 1 1 1 2 2 3 1 4 4 5 5 6 1 7 6 8 15 9 14 10 1 11 8 12 30 13 56 14 42 15 1 16 10 17 50 18 140 19 210 20 132 21 1 22 12 23 75 24 280 25 630 26 792 27 429 28 1 29 14 30 105 31 490 32 1470 33 2772 34 3003 35 1430 36 1 37 16 38 140 39 784 40 2940 41 7392 42 12012 43 11440 44 4862 45 1 46 18 47 180 48 1176 49 5292 50 16632 51 36036 52 51480 53 43758 54 16796 55 1 56 20 57 225