# A148585 (b-file synthesized from sequence entry)
0 1
1 1
2 3
3 6
4 20
5 54
6 182
7 578
8 1994
9 6876
10 24510
11 88314
12 324753
13 1204362
14 4534353
15 17203317
16 65929875
17 254661075
18 990465401
19 3878886425
20 15278673944
21 60503855579
22 240843922447
23 962901535611
24 3866489329858
25 15586583179789
26 63056954545168
27 255992060288283
28 1042485185403142
29 4257970164969914