# A151389 (b-file synthesized from sequence entry)
0 1
1 0
2 2
3 2
4 10
5 22
6 82
7 220
8 808
9 2356
10 8656
11 26654
12 98102
13 312984
14 1156032
15 3782616
16 14015132
17 46756952
18 173680748
19 588380312
20 2190211648
21 7512444672
22 28014835088
23 97081546938
24 362582983586
25 1267349177760
26 4739583478208
27 16688334026768
28 62482287911704
29 221396939695828
30 829766494964876
31 2956346830527760