# A089883 (b-file synthesized from sequence entry)
0 1
1 4
2 16
3 60
4 214
5 736
6 2464
7 8082
8 26092
9 83188
10 262582
11 822144
12 2557120
13 7910050
14 24357580
15 74720436
16 228485158
17 696795712
18 2120116768
19 6438264498
20 19518937516
21 59091592564
22 178675498006
23 539694923520
24 1628691435904
25 4911230068546
26 14799559211404