# A129925 (b-file synthesized from sequence entry) 1 1 2 3 3 2 4 12 5 8 6 60 7 40 8 24 9 360 10 240 11 144 12 2520 13 1680 14 1008 15 720 16 20160 17 13440 18 8064 19 5760 20 181440 21 120960 22 72576 23 51840 24 1814400 25 1209600 26 725760 27 518400 28 19958400 29 13305600 30 7983360 31 5702400 32 3628800 33 239500800 34 159667200 35 95800320 36 68428800