# A334656 (b-file synthesized from sequence entry)
0 1
1 0
2 4
3 9
4 24
5 90
6 225
7 756
8 2160
9 6561
10 19764
11 58806
12 177633
13 530712
14 1595052
15 4782969
16 14346720
17 43053282
18 129127041
19 387440172
20 1162241784
21 3486784401
22 10460412252
23 31380882462
24 94143533121
25 282429005040
26 847289140884
27 2541865828329
28 7625595890664