# A149300 (b-file synthesized from sequence entry)
0 1
1 1
2 4
3 11
4 46
5 167
6 724
7 2937
8 13198
9 56638
10 260681
11 1158673
12 5418236
13 24664374
14 116633536
15 540020796
16 2574876236
17 12072319038
18 57927952550
19 274200639772
20 1322301107301
21 6305857228733
22 30531313867656
23 146464682516223
24 711471159455107
25 3429482984153994
26 16704555180369196
27 80838570018888617