# A126923 (b-file synthesized from sequence entry)
0 1
1 33
2 561
3 6534
4 58542
5 429726
6 2688741
7 14734797
8 72139188
9 320292159
10 1304830527
11 4923228882
12 17335268874
13 57322733226
14 178956174243
15 529880976603
16 1494051617256
17 4025876961117
18 10400637791973
19 25836376187094
20 61877364279654
21 143225155573038