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 A135047 #3 Mar 31 2012 10:32:55 %S A135047 10332305196,15731023654,202193785336,417860702688,427241399860, %T A135047 648488931216 %N A135047 Initial members of an octuplet of generalized Fermat primes: numbers n such that (n+m)^4+1 is prime for m=0,2,4,6,8,10,12 and 14. %C A135047 n^4+1 can be prime for at most eight consecutive even numbers n, otherwise at least one member would be divisible by 17. %e A135047 a(1)=10332305196 because 103323051964^4+1 is prime and (10332305196+m)^4+1 is prime for all even m up to 14. %Y A135047 Cf. A000068. %K A135047 nonn %O A135047 1,1 %A A135047 _Martin Raab_, Feb 11 2008