# A150867 (b-file synthesized from sequence entry)
0 1
1 2
2 8
3 33
4 144
5 646
6 2956
7 13714
8 64303
9 303914
10 1445380
11 6908740
12 33159727
13 159704801
14 771417955
15 3735457375
16 18127282503
17 88132763487
18 429200044451
19 2093234549671
20 10222171723376
21 49977833439139
22 244608107536211
23 1198341604700467
24 5875836597723381
25 28834053134536693
26 141599014370814598