login

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

A207550 as a simple table

na(n)
13
29
39
426
581
626
775
8676
9676
1075
11216
125625
1314974
145625
15216
16622
1746656
18327518
19327899
2046656
21622
221791
23386884
247169168
2518584111
267104784
27386884
281791
295157
303207681
31156957792
321058580304
331033847229
34153718531
353207681
365157
3714849

[3,9,9,26,81,26,75,676,676,75,216,5625,14974,5625,
 216,622,46656,327518,327899,46656,622,1791,386884,
 7169168,18584111,7104784,386884,1791,5157,3207681,
 156957792,1058580304,1033847229,153718531,3207681,
 5157,14849]