# A083313 (b-file synthesized from sequence entry)
0 1
1 2
2 7
3 23
4 73
5 227
6 697
7 2123
8 6433
9 19427
10 58537
11 176123
12 529393
13 1590227
14 4774777
15 14332523
16 43013953
17 129074627
18 387289417
19 1161999323
20 3486260113
21 10459304627
22 31378962457
23 94138984523
24 282421147873
25 847271832227
26 2541832273897
27 7625530376123