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 A125965 #16 Mar 01 2022 11:56:04 %S A125965 2,3,4,7,8,9,18,23,32,36,41,52,54,55,56,60,68,74,80,82,87,93,107,115, %T A125965 140,142,146,154,162,165,170,189,227,238,253,262,263,269,276,285,300, %U A125965 304,305,306,308,310,315,317,332,339,350,361,363,367,371,384,386,390 %N A125965 Numbers k for which k^8+k^7-1 is prime. %H A125965 Amiram Eldar, <a href="/A125965/b125965.txt">Table of n, a(n) for n = 1..10000</a> %t A125965 Select[Range[500],PrimeQ[#^8+#^7-1]&] (* _Harvey P. Dale_, Feb 23 2011 *) %o A125965 (PARI) select(ispseudoprime, vector(500,n,n^8+n^7-1)) \\ _Charles R Greathouse IV_, Feb 23 2011 %Y A125965 Cf. A000040, A045546, A125881-A125885, A125966-A125973. %K A125965 nonn %O A125965 1,1 %A A125965 _Artur Jasinski_, Dec 14 2006