# A238761 (b-file synthesized from sequence entry) 1 1 2 2 3 3 4 3 5 8 6 10 7 4 8 15 9 30 10 35 11 5 12 24 13 63 14 112 15 126 16 6 17 35 18 112 19 252 20 420 21 462 22 7 23 48 24 180 25 480 26 990 27 1584 28 1716 29 8 30 63 31 270 32 825 33 1980 34 3861 35 6006 36 6435 37 9 38 80 39 385 40 1320 41 3575 42 8008 43 15015 44 22880 45 24310 46 10 47 99 48 528 49 2002 50 6006 51 15015 52 32032 53 58344 54 87516 55 92378