# A077842 (b-file synthesized from sequence entry)
0 1
1 1
2 4
3 13
4 37
5 112
6 337
7 1009
8 3028
9 9085
10 27253
11 81760
12 245281
13 735841
14 2207524
15 6622573
16 19867717
17 59603152
18 178809457
19 536428369
20 1609285108
21 4827855325
22 14483565973
23 43450697920
24 130352093761
25 391056281281
26 1173168843844
27 3519506531533
28 10558519594597