# A149016 (b-file synthesized from sequence entry)
0 1
1 1
2 3
3 9
4 35
5 124
6 505
7 1986
8 8332
9 34590
10 148477
11 636316
12 2779009
13 12157264
14 53805721
15 238768325
16 1067794767
17 4788480698
18 21592411576
19 97615331419
20 443124695004
21 2016183557312
22 9202926348780
23 42092256924557
24 193015496297659
25 886662045847162
26 4081658522126465
27 18819149960554654