# A147372 (b-file synthesized from sequence entry)
1 1
2 1
3 1
4 1
5 1
6 1
7 1
8 1
9 4
10 7
11 14
12 21
13 40
14 79
15 252
16 611
17 2359
18 6199
19 23158
20 70484
21 325136
22 1222235
23 6869095
24 29506240
25 189032773
26 936666179