# A105999 (b-file synthesized from sequence entry)
0 1
1 4
2 10
3 26
4 77
5 235
6 779
7 2785
8 10643
9 43697
10 192893
11 915218
12 4657929
13 25380749
14 147721169
15 916036271
16 6037442989
17 42191467826
18 311911160465
19 2434014941905
20 20007995450483
21 172911791611798
22 1568190042677867