# A149092 (b-file synthesized from sequence entry)
0 1
1 1
2 4
3 8
4 31
5 87
6 323
7 1081
8 3973
9 14445
10 54212
11 204544
12 786923
13 3038695
14 11904138
15 46856916
16 185950943
17 742818757
18 2981832628
19 12038056472
20 48820715319
21 198765075087
22 812772546171
23 3334144388475
24 13723690769043
25 56666703823593
26 234592663532672
27 973902799859392
28 4052797675504189