# A337187 (b-file synthesized from sequence entry)
0 1
1 1
2 2
3 3
4 7
5 19
6 63
7 229
8 955
9 4407
10 22445
11 124249
12 746003
13 4821287
14 33394193
15 246652725
16 1935828995
17 16086138151
18 141100295557
19 1302780182449
20 12630092274099
21 128275445380247
22 1362029496267529
23 15090795795916493
24 174167341456580947
25 2090520625244752407