# A151351 (b-file synthesized from sequence entry)
0 1
1 0
2 1
3 1
4 8
5 18
6 90
7 301
8 1413
9 5628
10 26083
11 114133
12 536065
13 2475101
14 11844488
15 56598072
16 275910093
17 1350392157
18 6692423872
19 33348850521
20 167631991925
21 847255772901
22 4310527391729
23 22040709981279
24 113295384193957
25 584965125869980
26 3033583060169821
27 15793448306316644
28 82532818466952627