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 A053997 #5 Mar 31 2012 10:32:39 %S A053997 2,98,960,3828,10228,21772,40248,67390,105222,156300,221246,304392, %T A053997 404404,528100,672456,844334,1044690,1270896,1531834,1833912,2163068, %U A053997 2537074,2949726,3412394,3922832,4470566,5074544,5742778,6460670 %N A053997 Sum of primes in n-th shell of prime spiral. %D A053997 G. L. Honaker, Jr., idea in 1998 email correspondence. %D A053997 Mike Keith, "Letter Spirals," Word Ways (33,1), Feb 15 2000. Pages 3-7. %Y A053997 Cf. A053823. %K A053997 easy,nonn %O A053997 0,1 %A A053997 _Enoch Haga_, Apr 06 2000