# A176956 (b-file synthesized from sequence entry)
0 1
1 3
2 3
3 11
4 35
5 139
6 547
7 2251
8 9379
9 39819
10 171171
11 744651
12 3271203
13 14494859
14 64707875
15 290773707
16 1314227619
17 5970720651
18 27251241891
19 124895810251
20 574563563299
21 2652205841547
22 12280754200611
23 57026615362763