# A149184 (b-file synthesized from sequence entry)
0 1
1 1
2 4
3 10
4 36
5 123
6 451
7 1715
8 6570
9 26133
10 104173
11 424824
12 1744847
13 7246790
14 30390296
15 128177201
16 545456346
17 2331067303
18 10029452264
19 43334144418
20 188114344033
21 820064019107
22 3587139466604
23 15751654599946
24 69360717243894
25 306415608927587
26 1357105949531911
27 6026355500018480