# A148466 (b-file synthesized from sequence entry)
0 1
1 1
2 2
3 6
4 19
5 61
6 221
7 815
8 3095
9 12109
10 48260
11 195368
12 803053
13 3337237
14 14015560
15 59384502
16 253544419
17 1090093997
18 4715233418
19 20507407116
20 89633056681
21 393499148239
22 1734526536805
23 7673967478285
24 34066109008637
25 151697174130059
26 677446012298428
27 3033350909365552
28 13615684209776521