# A094236 (b-file synthesized from sequence entry) 0 1 1 1 2 1 3 2 4 5 5 5 6 5 7 21 8 42 9 42 10 14 11 84 12 252 13 462 14 462 15 42 16 330 17 1320 18 3432 19 6006 20 6006 21 132 22 1287 23 6435 24 21450 25 51480 26 87516 27 87516 28 429 29 5005 30 30030 31 121550 32 364650 33 831402 34 1385670 35 1385670 36 1430 37 19448 38 136136 39 646646 40 2309450 41 6466460