# A270088 (b-file synthesized from sequence entry)
0 1
1 4
2 40
3 225
4 961
5 3969
6 16129
7 65025
8 261121
9 1046529
10 4190209
11 16769025
12 67092481
13 268402689
14 1073676289
15 4294836225