# A111467 (b-file synthesized from sequence entry) 1 1 2 2 3 3 4 6 5 10 6 14 7 24 8 40 9 54 10 56 11 120 12 168 13 264 14 270 15 280 16 720 17 1008 18 1200 19 1584 20 1620 21 1872 22 5040 23 7920 24 8400 25 9360 26 11088 27 11340 28 11760 29 40320 30 63360 31 67200 32 74880 33 88704 34 94080 35 97920 36 104832 37 362880 38 570240 39 673920 40 798336 41 881280 42 943488 43 984960 44 1192320 45 1224720