# A109114 (b-file synthesized from sequence entry)
0 1
1 6
2 27
3 117
4 504
5 2169
6 9333
7 40158
8 172791
9 743481
10 3199032
11 13764717
12 59226489
13 254838294
14 1096512003
15 4718045133
16 20300689656
17 87349312881
18 375844495437
19 1617174538542
20 6958339206399
21 29940172416369
22 128825844462648