# A099511 (b-file synthesized from sequence entry)
0 1
1 3
2 6
3 17
4 45
5 116
6 305
7 799
8 2090
9 5473
10 14329
11 37512
12 98209
13 257115
14 673134
15 1762289
16 4613733
17 12078908
18 31622993
19 82790071
20 216747218
21 567451585
22 1485607537
23 3889371024
24 10182505537
25 26658145587
26 69791931222
27 182717648081