# A149386 (b-file synthesized from sequence entry)
0 1
1 1
2 4
3 12
4 49
5 184
6 772
7 3233
8 14051
9 61341
10 273080
11 1225875
12 5565975
13 25405343
14 116867558
15 540770706
16 2513900350
17 11735911545
18 55025784823
19 258855070126
20 1221450625311
21 5780287183370
22 27425894994969
23 130429123332310
24 621587004920357
25 2968242924596417
26 14200288504162876
27 68045686162460783