# A216508 (b-file synthesized from sequence entry)
0 6
1 13
2 39
3 130
4 455
5 1638
6 6006
7 22308
8 83655
9 316030
10 1200914
11 4585308
12 17577014
13 67603887
14 260757536
15 1008258225
16 3906958055
17 15167837542
18 58983478554
19 229708325847
20 895760071050
21 3497141791455
22 13667427167576
23 53464307173927
24 209315686335366
25 820090746381088
26 3215215287887889