# A149875 (b-file synthesized from sequence entry)
0 1
1 2
2 5
3 13
4 45
5 150
6 548
7 1895
8 7595
9 28565
10 115446
11 438694
12 1862878
13 7407410
14 31401854
15 125165643
16 548208863
17 2251065516
18 9811745632
19 40261665482
20 179765822208
21 753826837023
22 3345833966405
23 14001164979883
24 63337842696640
25 269572598312974
26 1211822937294886
27 5143408328423039