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 A156980 #3 Mar 30 2012 18:52:32 %S A156980 2,13,31,53,79,97,103,163,233,251,277,349,367,383,389,433,439,457,479, %T A156980 503,521,547,563,569,613,619,631,653,659,673,691,709,727,839,907,929, %U A156980 947,983,1063,1069,1151,1223,1249,1283,1289,1423,1429,1447,1481,1511 %N A156980 Primes p such that 2 = abs(largest digit of p - sum of all the other digits of p). %Y A156980 Cf. A000040, A156979. %K A156980 nonn,base %O A156980 1,1 %A A156980 _Juri-Stepan Gerasimov_, Feb 20 2009 %E A156980 Removed 1033. Inserted 1069. _R. J. Mathar_, Feb 22 2009