# A038060 (b-file synthesized from sequence entry)
0 1
1 3
2 6
3 18
4 75
5 342
6 1773
7 9894
8 58596
9 362061
10 2314119
11 15185223
12 101830986
13 695253993
14 4819762446
15 33851833506
16 240472935735
17 1725315714729
18 12487872432924
19 91097741283408
20 669227023979088
21 4947500029023540
22 36786363204267282
23 274949933519917908