# A025590 (b-file synthesized from sequence entry)
0 1
1 2
2 10
3 44
4 156
5 572
6 2086
7 7254
8 23842
9 76764
10 234456
11 690902
12 1912462
13 5115272
14 12643292
15 30128464
16 65353058
17 136831514
18 256926694
19 466887564
20 749958636
21 1169595430
22 1586374020
23 2094918528
24 2360469300
25 2592155202
26 2368114810