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 A352800 #18 Apr 15 2025 11:58:34 %S A352800 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25, %T A352800 26,27,28,31,33,34,36,37,38,40,41,42,43,45,46,47,48,49,51,52,53,54,55, %U A352800 56,59,60,62,64,66,67,68,69,70,71,73,75,77,78,79,80,81,82 %N A352800 Numbers k such that 2*k^2 + 29 is prime. %H A352800 Robert Price, <a href="/A352800/b352800.txt">Table of n, a(n) for n = 1..10000</a> %H A352800 Adrien-Marie Legendre, <a href="https://archive.org/details/essaisurlathor00lege/page/10/mode/1up?view=theater">Essai sur la théorie des nombres</a>, Paris: Duprat, 1798, p. 10. %t A352800 Select[Range[0, 32260], PrimeQ[2 #^2 + 29] &] (* _Robert Price_, Apr 15 2025 *) %Y A352800 Cf. A007641. %K A352800 nonn,easy %O A352800 1,3 %A A352800 _Sean A. Irvine_ at the suggestion of _Rémi Guillaume_, Apr 03 2022