# A046207 (b-file synthesized from sequence entry) 1 2 2 3 3 12 4 4 5 20 6 5 7 60 8 30 9 6 10 105 11 42 12 7 13 280 14 168 15 56 16 8 17 504 18 252 19 72 20 9 21 1260 22 840 23 360 24 90 25 10 26 2310 27 1320 28 495 29 110 30 11 31 5544 32 3960 33 1980 34 660 35 132 36 12 37 10296 38 6435 39 2860 40 858 41 156 42 13 43 24024 44 18018 45 10010 46 4004 47 1092 48 182 49 14 50 45045 51 30030 52 15015 53 5460