# A120493 (b-file synthesized from sequence entry) 0 1 1 1 2 1 3 2 4 4 5 2 6 5 7 15 8 15 9 5 10 14 11 56 12 84 13 56 14 14 15 42 16 210 17 420 18 420 19 210 20 42 21 132 22 792 23 1980 24 2640 25 1980 26 792 27 132 28 428 29 2996 30 8988 31 14980 32 14980 33 8988 34 2996 35 428 36 1416 37 11328 38 39648 39 79296 40 99120 41 79296 42 39648 43 11328 44 1416