# A101818 (b-file synthesized from sequence entry) 1 1 2 1 3 1 4 1 5 6 6 2 7 1 8 21 9 36 10 6 11 1 12 60 13 300 14 240 15 24 16 1 17 155 18 1800 19 3900 20 1800 21 120 22 1 23 378 24 9030 25 42000 26 50400 27 15120 28 720 29 1 30 889 31 40572 32 357210 33 882000 34 670320 35 141120 36 5040 37 1 38 2040 39 169400 40 2610720 41 11677680 42 17781120 43 9313920 44 1451520 45 40320