# A148531 (b-file synthesized from sequence entry)
0 1
1 1
2 3
3 5
4 19
5 39
6 165
7 377
8 1675
9 4079
10 18529
11 47035
12 217047
13 567995
14 2653997
15 7110249
16 33549099
17 91566215
18 435189965
19 1205660275
20 5762040619
21 16160773167
22 77582569441
23 219855469855
24 1059452349945
25 3028920948749
26 14642669770195
27 42182989681607
28 204475691133925
29 592984713437089
30 2881020864061569