A116016 n+prime(n)+prime(prime(n)) is a cube, where prime(n) is the n-th prime.

34780, 147895, 302689, 449410, 4801151, 6717665

Offset: 1

Author

Giovanni Resta, Feb 13 2006

Keywords

• nonn

Examples

			34780+prime(34780)+prime(prime(34780)) = 6434856 = 186^3.
		

Crossrefs

Cf. A116011, A116012.

Programs

PARI

isok(n) = ispower(n + prime(n) + prime(prime(n)), 3); \\ Michel Marcus, Jan 27 2014