# A134762 (b-file synthesized from sequence entry)
0 1
1 4
2 16
3 58
4 208
5 754
6 2770
7 10294
8 38608
9 145858
10 554266
11 2116294
12 8112466
13 31201798
14 120349798
15 465352558
16 1803241168
17 7000818658
18 27225405898
19 106035791398
20 413539586458
21 1614773623318
22 6312296891158
23 24700292182798
24 96742811049298
25 379231819313254