# A148966 (b-file synthesized from sequence entry)
0 1
1 1
2 3
3 9
4 31
5 107
6 396
7 1458
8 5540
9 21033
10 81293
11 314027
12 1225435
13 4783122
14 18789381
15 73832583
16 291304767
17 1149836260
18 4551057689
19 18020509287
20 71487440526
21 283703124753
22 1127378648910
23 4481531060923
24 17831655342761
25 70972544638250
26 282676397433776
27 1126167707925430
28 4488901984666613