A390586 a(n) is the first nonprime k such that the sum over the A389751(n) consecutive nonprimes starting at k equals A389751(n)^3.

1, 8, 76, 116, 279, 714, 1205, 5289, 26481, 54164, 187254, 1089379, 2967807, 6134207, 12066834, 805863632, 31503672471, 247399537851

Offset

1,2

Links

Table of n, a(n) for n=1..18.

Example

See A389751.

Crossrefs

Cf. A018252, A389751, A390585.

Sequence in context: A302814 A088376 A096293 * A355049 A239549 A247828

Adjacent sequences: A390583 A390584 A390585 * A390587 A390588 A390589

Keyword

nonn,more

Author

Hugo Pfoertner, Nov 11 2025

Extensions

a(17) from Bert Dobbelaere, Nov 12 2025

a(18) from Karl-Heinz Hofmann, Nov 22 2025

Status

approved