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 A271578 #8 Apr 14 2016 10:05:10 %S A271578 120,126,132,136,138,140,142,144,146,148,150,154,156,158,160,162,164, %T A271578 166,168,170,172,174,176,178,180,182,184,186,188,190,192,194,196,198, %U A271578 200,202,204,206,208,210,212,214,216,218,220,222,224,226,228,230,232,234 %N A271578 Magic sums of 4 X 4 magic squares composed of primes. %C A271578 I conjecture that every even number greater than 152 belongs to this sequence. %H A271578 Wikipedia, <a href="https://en.wikipedia.org/wiki/Magic_square">Magic square</a> %H A271578 <a href="/index/Mag#magic">Index entries for sequences related to magic squares</a> %F A271578 If conjecture is true, a(n) = A005843(n+65) for n >= 12. %e A271578 Examples of 4 X 4 magic squares composed of primes. %e A271578 . %e A271578 |---|---|---|---| %e A271578 | 3 | 7 | 43| 67| %e A271578 |---|---|---|---| %e A271578 | 31| 61| 17| 11| %e A271578 |---|---|---|---| %e A271578 | 73| 23| 19| 5 | %e A271578 |---|---|---|---| %e A271578 | 13| 29| 41| 37| %e A271578 |---|---|---|---| %e A271578 The magic constant is 120 = a(1). %e A271578 . %e A271578 |---|---|---|---| %e A271578 | 3 | 7 | 43| 73| %e A271578 |---|---|---|---| %e A271578 | 31| 67| 17| 11| %e A271578 |---|---|---|---| %e A271578 | 79| 23| 19| 5 | %e A271578 |---|---|---|---| %e A271578 | 13| 29| 47| 37| %e A271578 |---|---|---|---| %e A271578 The magic constant is 126 = a(2). %Y A271578 Cf. A000040, A164843, A268790. %K A271578 nonn %O A271578 1,1 %A A271578 _Arkadiusz Wesolowski_, Apr 10 2016