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 A268405 #12 Apr 13 2025 11:28:21 %S A268405 3019035,3312609,4005577,4205871,4270887,4502832,4838229,4933775, %T A268405 5086008,6142338,6618260,6932403,6941996,7263518,7375900,7643466, %U A268405 7939002,8268798,8473961,8485664,8499341,8892530,8978097,8991587,9075462,9317324,9469974,9709914,9736792,9745217 %N A268405 Numbers m such that m^2 + m + 41 is a product of 7 primes. %C A268405 Note that a(1) = 3019035 = A228122(7) and a(11) = 6618260 = A145293(7). %H A268405 Zak Seidov, <a href="/A268405/b268405.txt">Table of n, a(n) for n = 1..140</a> %Y A268405 Cf. A145293, A228122, A268290, A005846, A007634, A145292, A145294, A145295. %K A268405 nonn %O A268405 1,1 %A A268405 _Zak Seidov_, Feb 04 2016