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 A238292 #14 Oct 21 2023 09:33:48
%S A238292 1,8,4,0,0,2,6,0,4,0,2,0,8,2,0,0,2,8,8,0,6,8,4,0,0,2,6,0,4,0,2,0,8,2,
%T A238292 0,0,2,8,8,0,6,8,4,0,0,2,6,0,4,0,2,0,8,2,0,0,2,8,8,0,6,8,4,0,0,2,6,0,
%U A238292 4,0,2,0,8,2,0,0,2,8,8,0,6,8,4,0,0,2
%N A238292 Final digit of imaginary part of (n+n*i)^n.
%H A238292 Vincenzo Librandi, <a href="/A238292/b238292.txt">Table of n, a(n) for n = 1..1000</a>
%H A238292 <a href="/index/Rec#order_20">Index entries for linear recurrences with constant coefficients</a>, signature (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1).
%t A238292 im[n_, b_] := Mod[b + Im@PowerMod[(n + n I), n, b], b]; Table[im[n, 10], {n, 100}]
%Y A238292 Cf. A238291, A056849.
%K A238292 nonn,base
%O A238292 1,2
%A A238292 _José María Grau Ribas_, Feb 22 2014