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 A114980 #18 Aug 07 2021 21:33:23 %S A114980 1,3,5,7,14,15,19,20,21,23,25,26,35,45,50,55,65,73,95,105,115,119,120, %T A114980 125,145,165,185,195,215,225,245,270,275,285,295,305,325,350,365,385, %U A114980 405,425,435,437,465,495,525,527,545,585,595,605,620,621,645 %N A114980 Numbers k such that (j^k + k^j) == 0 (mod k+j), j=5 case. %H A114980 Seiichi Manyama, <a href="/A114980/b114980.txt">Table of n, a(n) for n = 1..10000</a> %o A114980 (PARI) isok(k, j=5) = (j^k+k^j) % (k+j) == 0; \\ _Michel Marcus_, Oct 10 2013 %o A114980 (PARI) isok(k, j=5) = Mod(j, k+j)^k+Mod(k, k+j)^j == 0; \\ _Michel Marcus_, Aug 07 2021 %Y A114980 Cf. A114977, A114978, A114979, A114981. %K A114980 nonn %O A114980 1,2 %A A114980 _Zak Seidov_, Feb 22 2006 %E A114980 More terms from _Michel Marcus_, Oct 10 2013