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A342548 Factors k > 0 such that the polynomial k*x^3 + x^2 + 1 produces a record of its Hardy-Littlewood constant.

%I A342548 #6 May 01 2021 13:49:11
%S A342548 1,3,21,69,81,99,489,8169
%N A342548 Factors k > 0 such that the polynomial k*x^3 + x^2 + 1 produces a record of its Hardy-Littlewood constant.
%C A342548 For more information and references see A331950.
%e A342548   n  a(n)   Hardy-Littlewood
%e A342548             constant (rounded)
%e A342548   1     1   3.0750320679
%e A342548   2     3   3.3225199464
%e A342548   3    21   4.3206296013
%e A342548   4    69   4.3659028300
%e A342548   5    81   4.9042526822
%e A342548   6    99   6.0219444490
%e A342548   7   489   6.5115238241
%e A342548   8  8169   6.7898774153
%Y A342548 Cf. A331950, A342547, A342549.
%K A342548 nonn,more,hard
%O A342548 1,2
%A A342548 _Hugo Pfoertner_, May 01 2021