# A094385 (b-file synthesized from sequence entry) 0 1 1 0 2 1 3 0 4 1 5 2 6 0 7 2 8 6 9 5 10 0 11 5 12 20 13 28 14 14 15 0 16 14 17 70 18 135 19 120 20 42 21 0 22 42 23 252 24 616 25 770 26 495 27 132 28 0 29 132 30 924 31 2730 32 4368 33 4004 34 2002 35 429 36 0 37 429 38 3432 39 11880 40 23100 41 27300 42 19656 43 8008 44 1430 45 0 46 1430 47 12870 48 51051 49 116688 50 168300 51 157080 52 92820 53 31824 54 4862