# A148976 (b-file synthesized from sequence entry)
0 1
1 1
2 3
3 9
4 32
5 107
6 411
7 1553
8 6194
9 24389
10 100612
11 412488
12 1734453
13 7264212
14 31092761
15 132827500
16 575349257
17 2489633556
18 10903009511
19 47736774170
20 210767379271
21 930722838057
22 4140160460869
23 18425314173567
24 82449058082568
25 369170820588110
26 1660949457878375
27 7478371588472407
28 33798023245901890