A134695 - OEIS

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A134695

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

0

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

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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