# A076175 (b-file synthesized from sequence entry) 1 1 2 1 3 1 4 2 5 3 6 12 7 15 8 30 9 21 10 168 11 126 12 1260 13 990 14 792 15 1287 16 18018 17 5005 18 80080 19 68068 20 58344 21 50388 22 201552 23 176358 24 3879876 25 3432198 26 27457584 27 24515700 28 637408200 29 573667380 30 16062686640 31 29113619535 32 26466926850 33 24131609775