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 A059798 #5 Mar 31 2012 10:32:39 %S A059798 23,37,43,59,67,73,89,1237,1567,1787,1907,2141,2251,2297,2633,2963, %T A059798 3019,4079,4253,4363,4583,6637,6701,6857,6967,7211,7321,7541,8147, %U A059798 8419,8923,8969,9103,9323,9433,29303,29803,40093,40193,40493,40693,40993 %N A059798 Primes p such that |p - q| is a square, where q is the reversal of p. %F A059798 Subtract reversal of prime from prime. Take absolute value. If a square, add to sequence. %e A059798 a(7)=1237. Reverse is 7321 so 7321-1237=6084 and 6084 is a square whose root is 78. %Y A059798 Cf. A059799. %K A059798 easy,nonn,base %O A059798 1,1 %A A059798 _Enoch Haga_, Feb 23 2001