# A093969 (b-file synthesized from sequence entry)
0 0
1 1
2 0
3 3
4 8
5 25
6 72
7 203
8 560
9 1521
10 4080
11 10835
12 28536
13 74633
14 194040
15 501915
16 1292512
17 3315425
18 8474976
19 21597091
20 54884200
21 139127289
22 351877416
23 888121195
24 2237336592
25 5626467025
26 14126832720
27 35416929267
28 88670846936