# A278971 (b-file synthesized from sequence entry) 1 1 2 8 3 36 4 120 5 330 6 792 7 1716 8 3432 9 6435 10 11439 11 19433 12 31732 13 50016 14 76350 15 113178 16 163284 17 229713 18 315645 19 424215 20 558279 21 720147 22 911304 23 1132140 24 1381710 25 1657545 26 1955535 27 2269905 28 2593305 29 2917035 30 3231405 31 3526195 32 3791180 33 4016685 34 4194135 35 4316565 36 4379055 37 4379055 38 4316565 39 4194135 40 4016685 41 3791180 42 3526195 43 3231405 44 2917035 45 2593305 46 2269905 47 1955535 48 1657545 49 1381710 50 1132140 51 911304 52 720147 53 558279 54 424215 55 315645 56 229713 57 163284 58 113178 59 76350 60 50016 61 31732 62 19433 63 11439 64 6435 65 3432 66 1716 67 792 68 330 69 120 70 36 71 8 72 1