# A337326 (b-file synthesized from sequence entry) 1 1 2 3 3 6 4 15 5 45 6 30 7 42 8 60 9 132 10 264 11 270 12 378 13 594 14 210 15 462 16 780 17 1050 18 420 19 924 20 660 21 2100 22 840 23 3060 24 1848 25 3300 26 1890 27 2970 28 2520 29 9702 30 2310 31 5544 32 3780 33 11592 34 8316 35 18216 36 5460 37 5940 38 7980 39 16830 40 7140 41 11550 42 4620 43 21252 44 10920 45 23760 46 22440 47 49500