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 A125261 #23 Jul 14 2025 17:50:59
%S A125261 0,18,24,114,204,216,222,246,276,312,318,372,384,426,438,468,498,582,
%T A125261 618,654,822,888,948,984,1182,1188,1272,1278,1284,1374,1446,1536,1674,
%U A125261 1782,1788,1794,1806,1812,1896,2034,2058,2088,2124,2154,2232,2238,2376
%N A125261 Numbers k such that k^6 + 5 is prime.
%H A125261 Carmine Suriano, <a href="/A125261/b125261.txt">Table of n, a(n) for n = 1..2254</a>
%t A125261 lst={};k=6;Do[If[PrimeQ[n^k+k-1], AppendTo[lst, n]], {n, 0, 10^4}];lst (* _Vladimir Joseph Stephan Orlovsky_, Sep 10 2008 *)
%t A125261 Select[Range[0,2500],PrimeQ[#^6+5]&] (* _Harvey P. Dale_, Aug 29 2012 *)
%o A125261 (PARI) is(n)=isprime(n^6+5) \\ _Charles R Greathouse IV_, Feb 17 2017
%Y A125261 Other sequences of the type "Numbers k such that k^j + j - 1 is prime": A000040 (j=1), A005574 (j=2), A067200 (j=3), A125259 (j=4), A125260 (j=5), this sequence(j=6), A125262 (j=7), A125263 (j=8), A125264 (j=10), A125265 (j=11)..
%K A125261 nonn
%O A125261 1,2
%A A125261 _Zak Seidov_, Nov 26 2006