# A148132 (b-file synthesized from sequence entry)
0 1
1 1
2 2
3 4
4 11
5 28
6 77
7 228
8 692
9 2160
10 6879
11 22528
12 75430
13 254868
14 875874
15 3055683
16 10765198
17 38352888
18 137848862
19 499998280
20 1829241456
21 6733795838
22 24970420936
23 93195229701
24 349695790406
25 1319823920870
26 5005256608864
27 19072570922847
28 73017219637011
29 280622498877470
30 1082966473242941
31 4195021392215434