# A134165 (b-file synthesized from sequence entry)
0 1
1 3
2 8
3 24
4 86
5 348
6 1478
7 6324
8 26846
9 112668
10 467798
11 1925124
12 7867406
13 31980588
14 129475718
15 522603924
16 2104600766
17 8461122108
18 33972973238
19 136278002724
20 546271650926