# A049424 (b-file synthesized from sequence entry) 1 1 2 4 3 1 4 12 5 12 6 1 7 24 8 96 9 24 10 1 11 24 12 600 13 360 14 40 15 1 16 0 17 3024 18 4200 19 960 20 60 21 1 22 0 23 12096 24 40824 25 17640 26 2100 27 84 28 1 29 0 30 36288 31 338688 32 270144 33 55440 34 4032 35 112 36 1 37 0 38 72576 39 2407104 40 3580416 41 1212624 42 144144 43 7056 44 144 45 1 46 0 47 72576 48 14515200 49 41791680