# A153582 (b-file synthesized from sequence entry)
0 1
1 1
2 3
3 9
4 24
5 65
6 177
7 481
8 1308
9 3555
10 9664
11 26269
12 71406
13 194103
14 527625
15 1434235
16 3898654
17 10597641
18 28807374
19 78306562
20 212859305
21 578611580
22 1572829344
23 4275393425
24 11621724256
25 31591121861
26 85873572496
27 233428571660
28 634524644587
29 1724816811090
30 4688538195006
31 12744768177522