A134695 Numbers n such that n*Lucas(n) - 1 is prime.

2, 3, 6, 9, 10, 12, 14, 16, 18, 44, 72, 90, 114, 116, 126, 231, 291, 524, 718, 1065, 1143, 1806

Offset

1,1

Links

Table of n, a(n) for n=1..22.

Example

If n=2 then n*Lucas(n) - 1 = 5 (prime).
If n=44 then n*Lucas(n) - 1 = 69009494707 (prime).

Crossrefs

Cf. A134313, A134580, A000032.

Sequence in context: A090892 A120752 A236759 * A323393 A190674 A188399

Adjacent sequences: A134692 A134693 A134694 * A134696 A134697 A134698

Keyword

nonn

Author

Parthasarathy Nambi, Jan 27 2008

Status

approved