# A151277 (b-file synthesized from sequence entry)
0 1
1 1
2 6
3 19
4 92
5 380
6 1858
7 8531
8 42322
9 205486
10 1036242
11 5197028
12 26600656
13 136247450
14 706258300
15 3671453391
16 19233967034
17 101105026444
18 534364343102
19 2833591923458
20 15087564248648
21 80576221523390
22 431730827926256
23 2319409832695016
24 12494373170976880
25 67463786953484884
26 365108831177564780