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 A256837 #5 Apr 11 2015 17:04:14 %S A256837 6577,6661,6961,7237,7717,8161,8677,9697,10657,12037,16561,17377, %T A256837 18661,21937,24517,25057,26161,33457,35461,37537,56737,57637,69061, %U A256837 74161,77317,81637,84961,106417,108961,124897,129061,143461,146437,147937,150961,155557 %N A256837 Primes of form n^2 + 6561. %C A256837 Conjecture: sequence is infinite. %H A256837 Reinhard Zumkeller, <a href="/A256837/b256837.txt">Table of n, a(n) for n = 1..10000</a> %o A256837 (Haskell) %o A256837 a256837 n = a256837_list !! (n-1) %o A256837 a256837_list = [x | x <- map (+ 6561) a000290_list, a010051' x == 1] %Y A256837 Cf. A010051, A000290; subsequence of A028916. %Y A256837 Primes of form n^2+b^4, b fixed: A002496 (b=1), A243451 (b=2), A256775 (b=3), A256776 (b=4), A256777 (b=5), A256834 (b=6), A256835 (b=7), A256836 (b=8), A256838 (b=10), A256839 (b=11), A256840 (b=12), A256841 (b=13) %K A256837 nonn %O A256837 1,1 %A A256837 _Reinhard Zumkeller_, Apr 11 2015