# A151448 (b-file synthesized from sequence entry)
0 1
1 1
2 4
3 13
4 46
5 178
6 699
7 2826
8 11665
9 48877
10 207426
11 889753
12 3850726
13 16792923
14 73721417
15 325516893
16 1444683024
17 6440892041
18 28832816045
19 129544987197
20 583978531063
21 2640502004594
22 11972283977009
23 54421442961369
24 247958522736954
25 1132210929270549
26 5180203300927992
27 23745237667125709