# A149493 (b-file synthesized from sequence entry)
0 1
1 1
2 4
3 14
4 60
5 251
6 1120
7 5034
8 23167
9 107491
10 504444
11 2382474
12 11326009
13 54091015
14 259422990
15 1248388483
16 6025296992
17 29153344429
18 141368541183
19 686821433084
20 3342472006964
21 16290717857322
22 79504766682773
23 388478084327045
24 1900247753858534
25 9304229885789657
26 45597320486134219
27 223642198438153404