This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A066429 #14 Dec 19 2024 13:21:10
%S A066429 0,49,343,2401,16807,117649,0,1570497,2089855,2475249,9122472,
%T A066429 10209313,5300159,98001617,62916193,84245889,82474028,145795249,
%U A066429 530403874,57612001,1611673651,2006506001,832663280,2652148801,4541072682,7457168625,3383428402,6778582433,4637847366
%N A066429 a(n) = 7^n mod n^7.
%H A066429 Harry J. Smith, <a href="/A066429/b066429.txt">Table of n, a(n) for n = 1..500</a>
%t A066429 Table[ Mod[ 7^n, n^7], {n, 1, 30} ]
%t A066429 Table[PowerMod[7,n,n^7],{n,30}] (* _Harvey P. Dale_, Dec 25 2023 *)
%o A066429 (PARI) a(n) = { lift(Mod(7, n^7)^n) } \\ _Harry J. Smith_, Feb 13 2010
%Y A066429 Cf. A066606.
%K A066429 nonn
%O A066429 1,2
%A A066429 _Robert G. Wilson v_, Dec 27 2001