# A103252 (b-file synthesized from sequence entry) 1 1 2 4 3 3 4 10 5 12 6 6 7 20 8 30 9 24 10 10 11 35 12 60 13 60 14 40 15 15 16 56 17 105 18 120 19 100 20 60 21 21 22 84 23 168 24 210 25 200 26 150 27 84 28 28 29 120 30 252 31 336 32 350 33 300 34 210 35 112 36 36 37 165 38 360 39 504 40 560 41 525 42 420 43 280 44 144 45 45 46 220 47 495 48 720 49 840 50 840 51 735 52 560 53 360 54 180 55 55