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A068083 a(1) = 1, a(n) is the smallest Fibonacci number of the form k*a(n-1) + 1 with k>0. 0
1, 2, 3, 13, 144, 28657, 701408733, 679891637638612258, 394810887814999156320699623170776339, 215414832505658809004682396169711233230800418578767753330908886771798637 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..10.

EXAMPLE

a(5) = 144 = 11*13 + 1, a(4) = 13.

MATHEMATICA

a[1]=1; a[n_] := a[n]=For[r=3, True, r++, If[Mod[Fibonacci[r]-1, a[n-1]]==0, Return[Fibonacci[r]]]]

CROSSREFS

Sequence in context: A224792 A062447 A153888 * A137459 A267422 A072162

Adjacent sequences:  A068080 A068081 A068082 * A068084 A068085 A068086

KEYWORD

nonn

AUTHOR

Amarnath Murthy, Feb 18 2002

EXTENSIONS

Edited by Dean Hickerson, Feb 20 2002

STATUS

approved

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Last modified September 20 10:51 EDT 2021. Contains 347584 sequences. (Running on oeis4.)