# A001138 (b-file synthesized from sequence entry)
1 1
2 0
3 1
4 4
5 6
6 4
7 2
8 8
9 32
10 96
11 256
12 608
13 1268
14 2392
15 4177
16 6720
17 9976
18 14064
19 19882
20 30952
21 59080
22 138096
23 355734
24 929040
25 2380268
26 5940408
27 14466720
28 34499984
29 80786736
30 186018208
31 421400951
32 939336288
33 2060601888
34 4450171328
35 9468023540