# A165412 (b-file synthesized from sequence entry) 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 10 10 11 12 12 14 13 15 14 18 15 20 16 21 17 24 18 28 19 30 20 35 21 36 22 40 23 42 24 45 25 56 26 60 27 63 28 70 29 72 30 84 31 90 32 105 33 120 34 126 35 140 36 168 37 180 38 210 39 252 40 280 41 315 42 360 43 420 44 504 45 630 46 840 47 1260 48 2520