login

Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.

A207290 as a simple table

na(n)
14
216
316
462
5256
662
7241
83844
93844
10241
11936
1258081
13216952
1458081
15936
163636
17876096
1812359893
1912359893
20876096
213636
2214124
2313220496
24702401282
252663436930
26702401282
2713220496
2814124
2954865
30199487376
3139940889449

[4,16,16,62,256,62,241,3844,3844,241,936,58081,
 216952,58081,936,3636,876096,12359893,12359893,
 876096,3636,14124,13220496,702401282,2663436930,
 702401282,13220496,14124,54865,199487376,
 39940889449]