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 A088034 #11 Sep 22 2024 17:57:46 %S A088034 8,10,24,26,28,44,46,48,50,62,64,74,76,80,82,98,100,116,118,120,122, %T A088034 124,126,134,136,146,148,152,154,168,170,172,174,176,188,190,206,208, %U A088034 224,226,242,244,246,260,262,274,276,278,280,288,290,296,298,314,316,324 %N A088034 Even numbers k such that k^2-1 is divisible by a square > 1. %t A088034 Select[Range[2,400,2],!SquareFreeQ[#^2-1]&] (* _Harvey P. Dale_, Jan 15 2012 *) %Y A088034 Intersection of A005843 and A173186. %Y A088034 Cf. A088033. %K A088034 nonn %O A088034 1,1 %A A088034 _Amarnath Murthy_, Sep 19 2003 %E A088034 More terms from _Ray Chandler_, Sep 23 2003 %E A088034 Offset changed by _Andrew Howroyd_, Sep 22 2024