# A127673 (b-file synthesized from sequence entry) 0 1 1 1 2 1 3 1 4 4 5 3 6 1 7 6 8 15 9 10 10 1 11 8 12 28 13 56 14 35 15 1 16 10 17 45 18 120 19 210 20 126 21 1 22 12 23 66 24 220 25 495 26 792 27 462 28 1 29 14 30 91 31 364 32 1001 33 2002 34 3003 35 1716 36 1 37 16 38 120 39 560 40 1820 41 4368 42 8008 43 11440 44 6435 45 1 46 18 47 153 48 816 49 3060 50 8568 51 18564 52 31824 53 43758 54 24310 55 1 56 20 57 190