# A151455 (b-file synthesized from sequence entry)
0 1
1 1
2 4
3 11
4 41
5 148
6 572
7 2267
8 9162
9 37891
10 158433
11 672432
12 2879455
13 12450139
14 54227938
15 237810937
16 1049050916
17 4651766238
18 20724281904
19 92714185721
20 416353436502
21 1876119867850
22 8480415869145
23 38442520244193
24 174720912665199
25 796023531740341
26 3634755946489895
27 16631145589921509