# A148225 (b-file synthesized from sequence entry)
0 1
1 1
2 2
3 4
4 13
5 31
6 99
7 291
8 961
9 3015
10 10230
11 34312
12 119249
13 409683
14 1454025
15 5182995
16 18523533
17 67012371
18 245232291
19 896656968
20 3309285901
21 12290521562
22 45804467416
23 171635860027
24 645265019687
25 2437630482990
26 9249682909078
27 35134037746185
28 134114589749484
29 513891798129711
30 1969995320749982