# A356546 (b-file synthesized from sequence entry) 0 1 1 2 2 2 3 6 4 12 5 6 6 20 7 60 8 60 9 20 10 70 11 280 12 420 13 280 14 70 15 252 16 1260 17 2520 18 2520 19 1260 20 252 21 924 22 5544 23 13860 24 18480 25 13860 26 5544 27 924 28 3432 29 24024 30 72072 31 120120 32 120120 33 72072 34 24024 35 3432 36 12870 37 102960 38 360360 39 720720 40 900900 41 720720 42 360360 43 102960 44 12870