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 A322124 #16 Jul 17 2021 06:56:41 %S A322124 1,22,25,28,36,42,43,57,63,84,105,127,183,207,211,217,249,259,295,393, %T A322124 396,417,421,480,508,546,613,624,652,673,760,798,799,816,903,945,963, %U A322124 1054,1222,1254,1330,1338,1443,1506,1513,1653,1656,1716,1824,1975,2031 %N A322124 Numbers k such that m = 24k^2 + 4k + 73 and 6m - 5 are both primes. %C A322124 Rotkiewicz proved that if k is in this sequence, and m = 24k^2 + 4k + 73, then m*(6m - 5) is a tetradecagonal Fermat pseudoprime to base 2 (A322123), and thus under Schinzel's Hypothesis H there are infinitely many tetradecagonal Fermat pseudoprimes to base 2. %C A322124 The corresponding pseudoprimes are 60701, 832127489, 1381243709, 2166133001, 5885873641, 10876592689, 11945978741, ... %H A322124 Amiram Eldar, <a href="/A322124/b322124.txt">Table of n, a(n) for n = 1..10000</a> %H A322124 Andrzej Rotkiewicz, <a href="http://matwbn.icm.edu.pl/ksiazki/aa/aa21/aa21137.pdf">On some problems of W. Sierpinski</a>, Acta Arithmetica, Vol. 21 (1972), pp. 251-259. %H A322124 Wikipedia, <a href="https://en.wikipedia.org/wiki/Schinzel%27s_hypothesis_H">Schinzel's Hypothesis H</a>. %t A322124 Select[Range[1000], PrimeQ[24#^2 + 4# + 73] && PrimeQ[144#^2 + 24# + 433] &] %o A322124 (PARI) isok(n) = isprime(m=24n^2+4n+73) && isprime(6*m-5); \\ _Michel Marcus_, Nov 28 2018 %Y A322124 Cf. A001567, A051866, A322123. %K A322124 nonn %O A322124 1,2 %A A322124 _Amiram Eldar_, Nov 27 2018