# A108169 (b-file synthesized from sequence entry)
0 1
1 1
2 1
3 3
4 18
5 33
6 111
7 690
8 1269
9 4292
10 26705
11 49118
12 166165
13 1033922
14 1901679
15 6433333
16 40029886
17 73626439
18 249076459
19 1549819116
20 2850561773
21 9643381402
22 60003650693
23 110363919984
24 373358466957
25 2323134396636
26 4272910326315