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 A145741 #13 Feb 18 2023 10:39:21 %S A145741 163,409333,1867783,828497443,2059599067,5767711867,8965599883, %T A145741 9655686727,9671300983,12627473917,19635778453,31428255373, %U A145741 76292280733,140192390683,141077258953,141805795657,150360096973,176552953273,186521536807,250298387047 %N A145741 Numbers p such that p + 4*m^2 is prime for m = 0,1,2,3,...,10. %C A145741 It is obvious that all terms are prime. %C A145741 A very strange and interesting thing related to the first term: All 20 numbers 163+4*m^2 for m=0,1,2,...,19 are prime. %C A145741 There are 3136 terms below 10^15, ending with 999926956948957. - _Jens Kruse Andersen_, Oct 24 2008 %H A145741 Jens Kruse Andersen, <a href="/A145741/b145741.txt">Table of n, a(n) for n = 1..3136</a> %H A145741 Carlos Rivera, <a href="http://www.primepuzzles.net/puzzles/puzz_461.htm">Consecutive even squares+prime=prime</a>. %H A145741 Carlos Rivera, <a href="http://www.primepuzzles.net/puzzles/puzz_461.htm">Puzzle 464. p+4*x^2</a>. %e A145741 All 11 numbers 2059599067 + 4*m^2 for m = 0,1,2,...,10 are prime, so 2059599067 is a term. %o A145741 (PARI) forprime(p=1,5*10^8,c=0;for(m=1,10,if(!isprime(p+4*m^2),break);c+=1);if(c==10,print1(p,", "))) \\ _Derek Orr_, Jul 25 2017 %Y A145741 Cf. A145742, A145743. %K A145741 nonn %O A145741 1,1 %A A145741 _Farideh Firoozbakht_, Oct 17 2008 %E A145741 More terms from _Jens Kruse Andersen_, Oct 24 2008