# A149284 (b-file synthesized from sequence entry)
0 1
1 1
2 4
3 11
4 44
5 155
6 647
7 2524
8 10851
9 44688
10 196029
11 834632
12 3713663
13 16168470
14 72696835
15 321575149
16 1457430579
17 6523572929
18 29751626175
19 134384963549
20 615987292496
21 2802342663867
22 12898952899310
23 59021474220361
24 272625261845824
25 1253368105759865
26 5806760449234618
27 26801640858939693