A371349 - OEIS

A371349

Odd addends k > 0 such that x^2 + x + k produces a new minimum of its Hardy-Littlewood Constant.

1, 3, 9, 15, 33, 63, 75, 225, 243, 273, 453, 813, 1275, 1443, 2763, 3003, 6693, 9933, 10515

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,2

LINKS

Martin Raab, Post in thread Ponder This - March 2024, at Mersenneforum.org, Apr 08 2024 (suggests this sequence).

PROG

(PARI) \\ Uses function HardyLittlewood2 from a221712.gp; see link in A331940

a371349(upto) = {my (Hmin=oo); forstep (k=1, upto, 2, my (H=HardyLittlewood2(x^2+x+k)); if (H<Hmin, print1(k, ", "); Hmin=H))};

a371349(1500)

CROSSREFS

Cf. A331940 for more information.

KEYWORD

nonn,hard,more

AUTHOR

Hugo Pfoertner, Apr 11 2024, suggested by Martin Raab

STATUS

approved