# A291185 (b-file synthesized from sequence entry) 1 1 2 2 3 2 4 6 5 6 6 6 7 12 8 30 9 30 10 60 11 120 12 210 13 420 14 420 15 840 16 2520 17 9240 18 9240 19 27720 20 55440 21 120120 22 360360 23 720720 24 2162160 25 6126120 26 12252240 27 36756720 28 116396280 29 232792560 30 698377680 31 2677114440 32 5354228880 33 26771144400 34 155272637520 35 465817912560