# A118398 (b-file synthesized from sequence entry)
0 1
1 1
2 3
3 7
4 25
5 81
6 267
7 855
8 2865
9 9889
10 34963
11 124455
12 443977
13 1583089
14 5640603
15 20071287
16 71341665
17 253483329
18 901388067
19 3211744839
20 11477295225
21 41157734289
22 148140201003
23 535151245719
24 1939739625873
25 7051722637281