# A008285 (b-file synthesized from sequence entry) 1 1 2 1 3 2 4 1 5 12 6 6 7 1 8 86 9 108 10 24 11 1 12 840 13 2310 14 960 15 120 16 1 17 11642 18 65700 19 42960 20 9000 21 720 22 1 23 227892 24 2583126 25 2510760 26 712320 27 90720 28 5040 29 1 30 6285806 31 142259628 32 199424904 33 71243760 34 11481120 35 987840 36 40320