# A149045 (b-file synthesized from sequence entry)
0 1
1 1
2 3
3 10
4 38
5 137
6 577
7 2291
8 10009
9 41841
10 187031
11 811230
12 3684936
13 16361745
14 75298511
15 339975656
16 1580274100
17 7227506775
18 33851197613
19 156428458866
20 737098177726
21 3434650018173
22 16265977455513
23 76309112087123
24 362941630929479
25 1712255140064679
26 8173745196625151
27 38744780527451802