# A107271 (b-file synthesized from sequence entry) 1 1 2 3 3 2 4 6 5 6 6 2 7 14 8 24 9 12 10 50 11 66 12 28 13 144 14 216 15 100 16 460 17 648 18 288 19 1396 20 2028 21 920 22 4344 23 6216 24 2792 25 13352 26 19248 27 8688 28 41288 29 59304 30 26704 31 127296 32 183168 33 82576 34 393040 35 565056 36 254592 37 1212688 38 1744176 39 786080