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 A365099 #14 Aug 22 2023 07:57:27
%S A365099 1,2,3,2,5,4,7,3,7,6,11,4,13,8,15,5,17,8,19,4,9,12,23,6,21,14,19,8,29,
%T A365099 12,31,9,33,18,35,8,37,20,15,6,41,8,43,12,35,24,47,10,43,22,51,8,53,
%U A365099 20,15,12,21,30,59,8,61,32,21,17,65,24,67,10,69,24,71,12,73,38,63
%N A365099 Number of distinct residues of x^n (mod n^2), x=0..n^2-1.
%o A365099 (PARI) a(n) = #Set(vector(n^2, x, Mod(x-1,n^2)^n)); \\ _Michel Marcus_, Aug 22 2023
%o A365099 (Python)
%o A365099 def A365099(n): return len({pow(x,n,n**2) for x in range(n**2)}) # _Chai Wah Wu_, Aug 22 2023
%Y A365099 Cf. A195637, A365100, A365101, A365102, A023105, A046631, A365103.
%K A365099 nonn
%O A365099 1,2
%A A365099 _Albert Mukovskiy_, Aug 21 2023