# A149754 (b-file synthesized from sequence entry)
0 1
1 1
2 5
3 17
4 83
5 333
6 1643
7 7155
8 35489
9 161173
10 801969
11 3736501
12 18625587
13 88230789
14 440281431
15 2109661555
16 10534432565
17 50894814307
18 254247117363
19 1235902365797
20 6175716789891
21 30161603582603
22 150743420895283
23 738923672434885
24 3693502675312573
25 18158046286023841
26 90770725819503389