# A149926 (b-file synthesized from sequence entry)
0 1
1 2
2 5
3 15
4 47
5 163
6 586
7 2160
8 8143
9 31249
10 122003
11 482213
12 1924812
13 7746184
14 31413375
15 128260561
16 526691085
17 2173416903
18 9007876762
19 37483502040
20 156541737992
21 655875059098
22 2755922252710
23 11610743967840
24 49035694269000
25 207557684051887
26 880354998513425
27 3741090893585575