# A149715 (b-file synthesized from sequence entry)
0 1
1 1
2 5
3 17
4 71
5 297
6 1299
7 5699
8 25707
9 116793
10 536131
11 2480397
12 11559489
13 54122031
14 254694451
15 1203531177
16 5706949229
17 27145042957
18 129487009863
19 619188068719
20 2967426010429
21 14250219049149
22 68558210262343
23 330381620037843
24 1594552192024995
25 7706792146786665
26 37296631154429987
27 180711774104487389