# A056297 (b-file synthesized from sequence entry)
1 0
2 0
3 0
4 1
5 2
6 13
7 50
8 221
9 866
10 3437
11 13250
12 51075
13 194810
14 742651
15 2823766
16 10738881
17 40843370
18 155494751
19 592614050
20 2261625725
21 8643289534
22 33080920607
23 126797503250
24 486710971595
25 1870851589554
26 7201014763285
27 27752927359726
28 107092397450897