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A342549
Factors k > 0 such that the polynomial 2*k*x^3 + 1 produces a record of its Hardy-Littlewood constant.
2
1, 5, 12, 57, 75, 135, 195, 210, 660
OFFSET
1,2
COMMENTS
a(10) > 10000.
For more information and references see A331950.
EXAMPLE
n a(n) Hardy-Littlewood
constant (rounded)
1 1 2.5970791151
2 5 3.3401203819
3 12 4.1716318164
4 57 4.5504531392
5 75 4.7090460169
6 135 5.0101805728
7 195 5.3408627801
8 210 6.0848257259
9 660 6.5566372288
CROSSREFS
Cf. A331945 (records for k*x^2+1), A331950, A342547, A342548, A342566.
Sequence in context: A066961 A179994 A131549 * A346746 A111904 A015784
KEYWORD
nonn,hard,more
AUTHOR
Hugo Pfoertner, May 01 2021
STATUS
approved