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 A075524 #12 Jul 13 2013 12:02:50 %S A075524 10,15,21,69,95,117,165,175,213,245,287,319,335,357,405,415,437,453, %T A075524 511,527,549,559,597,629,655,671,693,725,767,789,799,847,895,917,933, %U A075524 959,965,1007,1029,1055,1077,1125,1135,1173,1247,1253,1269,1349,1391 %N A075524 Nonprimes of form 4*p + (p mod 4), p prime. %H A075524 Reinhard Zumkeller, <a href="/A075524/b075524.txt">Table of n, a(n) for n = 1..10000</a> %t A075524 Select[4#+Mod[#,4]&/@Prime[Range[100]],!PrimeQ[#]&] (* _Harvey P. Dale_, Nov 21 2012 *) %o A075524 (Haskell) %o A075524 a075524 n = a075524_list !! (n-1) %o A075524 a075524_list = filter ((== 0) . a010051') a075520_list %o A075524 -- _Reinhard Zumkeller_, Feb 20 2012 %Y A075524 Cf. A075520, A075523. %K A075524 nonn %O A075524 1,1 %A A075524 _Reinhard Zumkeller_, Sep 19 2002