# A150545 (b-file synthesized from sequence entry)
0 1
1 2
2 7
3 26
4 104
5 424
6 1799
7 7702
8 33516
9 147394
10 652986
11 2914743
12 13083333
13 58999874
14 267246535
15 1214730328
16 5539131519
17 25330977489
18 116127158302
19 533596390917
20 2456884051208
21 11333435962029
22 52370456329081
23 242376654647296
24 1123371423517327
25 5213627047990241
26 24226805860447941
27 112708523641261090