# A149134 (b-file synthesized from sequence entry)
0 1
1 1
2 4
3 9
4 34
5 110
6 386
7 1453
8 5156
9 20174
10 74994
11 293878
12 1140716
13 4472826
14 17816014
15 70468423
16 283996688
17 1137686308
18 4610999048
19 18688574722
20 76099976154
21 311108960790
22 1273421789480
23 5237156169806
24 21550990170296
25 89026276118776
26 368136777403556
27 1526411900767346
28 6338474045523214