# A026117 (b-file synthesized from sequence entry)
0 1
1 1
2 1
3 2
4 6
5 10
6 30
7 50
8 160
9 265
10 873
11 1442
12 4851
13 7996
14 27300
15 44928
16 155115
17 254950
18 887910
19 1457852
20 5112767
21 8387170
22 29582886
23 48492028
24 171857127
25 281521541
26 1001762125
27 1640055250
28 5856231825
29 9582770760
30 34320863160
31 56135075250