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 A271265 #6 Apr 03 2016 22:20:09 %S A271265 379,743,827,1373,1499,1597,2213,2647,2843,3221,3571,4243,4397,4621, %T A271265 5657,6133,6217,6329,6427,8443,8513,8597,8737,8807,8863,9059,9871, %U A271265 10529,10781,11159,11173,11551,11579,12377,12517,12671,12713,13693,13903,14029,14197 %N A271265 Primes congruent to 1 mod 14 represented by x^2 + 343y^2. %C A271265 Includes the septic artiads (A270800). %H A271265 Eric M. Schmidt, <a href="/A271265/b271265.txt">Table of n, a(n) for n = 1..1000</a> %H A271265 E. Lehmer, <a href="http://dx.doi.org/10.1016/0022-247X(66)90145-4">Artiads characterized</a>, J. Math. Anal. Appl. 15 1966 118-131. See p. 129-130, Theorems 9 and 10. %H A271265 E. Lehmer, <a href="/A001583/a001583b.pdf">Artiads characterized</a>, J. Math. Anal. Appl. 15 1966 118-131 [annotated and corrected scanned copy] %Y A271265 Cf. A270800. %K A271265 nonn %O A271265 1,1 %A A271265 _Eric M. Schmidt_, Apr 03 2016