# A127702 (b-file synthesized from sequence entry) 1 1 2 4 3 9 4 16 5 20 6 36 7 42 8 64 9 72 10 90 11 90 12 144 13 144 14 168 15 210 16 240 17 240 18 324 19 324 20 360 21 420 22 420 23 420 24 576 25 600 26 600 27 600 28 756 29 756 30 840 31 840 32 960 33 960 34 960 35 960 36 1260 37 1260 38 1260 39 1260 40 1560 41 1560 42 1680 43 1680 44 1680 45 1980 46 1980 47 1980 48 2160 49 2160 50 2400 51 2400