# A174403 (b-file synthesized from sequence entry)
0 1
1 2
2 7
3 22
4 76
5 268
6 977
7 3638
8 13804
9 53164
10 207342
11 817212
12 3250104
13 13026744
14 52567461
15 213394854
16 870845260
17 3570590668
18 14701822370
19 60765209876
20 252021314536
21 1048538259304
22 4375013741962
23 18302920281148
24 76756814078840
25 322618359099896
26 1358831330368732