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 A256836 #8 May 26 2025 12:37:36 %S A256836 4177,4217,4457,4721,4937,6121,7121,7577,7817,9137,9721,10337,10657, %T A256836 11321,12377,13121,15121,16417,17321,18257,23417,23977,25121,26297, %U A256836 31321,34721,36137,36857,38321,40577,44497,47777,50321,52057,52937,54721,57457,81937 %N A256836 Primes of form n^2 + 4096. %C A256836 Conjecture: sequence is infinite. %H A256836 Reinhard Zumkeller, <a href="/A256836/b256836.txt">Table of n, a(n) for n = 1..10000</a> %t A256836 Select[Range[1,300,2]^2+4096,PrimeQ] (* _Harvey P. Dale_, May 26 2025 *) %o A256836 (Haskell) %o A256836 a256836 n = a256836_list !! (n-1) %o A256836 a256836_list = [x | x <- map (+ 4096) a000290_list, a010051' x == 1] %Y A256836 Cf. A010051, A000290; subsequence of A028916. %Y A256836 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), A256837 (b=9), A256838 (b=10), A256839 (b=11), A256840 (b=12), A256841 (b=13). %K A256836 nonn %O A256836 1,1 %A A256836 _Reinhard Zumkeller_, Apr 11 2015