# A149971 (b-file synthesized from sequence entry)
0 1
1 2
2 5
3 16
4 55
5 202
6 788
7 3164
8 13059
9 55076
10 236334
11 1029234
12 4535902
13 20200270
14 90758717
15 410933676
16 1873206910
17 8589677654
18 39597122282
19 183397246362
20 853021434437
21 3982738734064
22 18659695033482
23 87698406837964
24 413356798353195
25 1953440656251830
26 9253901949698603
27 43935669050478198