# A149751 (b-file synthesized from sequence entry)
0 1
1 1
2 5
3 17
4 81
5 331
6 1567
7 6917
8 32993
9 151045
10 725821
11 3392889
12 16395681
13 77672623
14 376945023
15 1802187471
16 8775092203
17 42233825271
18 206187157371
19 997354857219
20 4879632943263
21 23695900004955
22 116141608476923
23 565757624024903
24 2777158699418331
25 13562804932211847
26 66662346524949199
27 326247423633847089