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A246693 Integers of the form A000129(k)/k. 2
1, 1, 3, 51, 1155, 29427, 22639155, 19594173939, 591666769155, 17395890501991155, 545562959212245745155, 17374763192966689655283, 17822632594268121083311155, 98871007862168357169507809155, 20542323580569158999838073680199155 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

Table of n, a(n) for n=1..15.

EXAMPLE

A000129(4)/4 = 12/4 = 3.

MATHEMATICA

z = 1000; t = LinearRecurrence[{2, 1}, {1, 2}, z]; (* A000129 *)

Select[Range[1, z], IntegerQ[t[[#]]/#] &]   (* A246692 *)

Table[t[[u[[n]]]]/u[[n]], {n, 1, 17}]  (* A246693 *)

CROSSREFS

Cf. A246692, A000129.

Sequence in context: A075869 A307369 A126685 * A187666 A172434 A210676

Adjacent sequences:  A246690 A246691 A246692 * A246694 A246695 A246696

KEYWORD

nonn,easy

AUTHOR

Clark Kimberling, Sep 01 2014

STATUS

approved

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Last modified August 9 16:21 EDT 2022. Contains 356026 sequences. (Running on oeis4.)