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A086382 k divides F(k*n^2+1)-F(k+1) for 1<=k<=a(n) where F(k) is the k-th Fibonacci number. 0
2, 1, 2, 10, 1, 10, 2, 1, 2, 12, 1, 10, 2, 1, 2, 10, 1, 12, 2, 1, 2, 10, 1, 10, 2, 1, 2, 16, 1, 12, 2, 1, 2, 10, 1, 10, 2, 1, 2, 16, 1, 10, 2, 1, 2, 10, 1, 12, 2, 1, 2, 10, 1, 10, 2, 1, 2, 12, 1, 12, 2, 1, 2, 10, 1, 10, 2, 1, 2, 36, 1, 10, 2, 1, 2, 10, 1, 12, 2, 1, 2, 10, 1, 10, 2, 1, 2, 12, 1, 12 (list; graph; refs; listen; history; text; internal format)
OFFSET

2,1

LINKS

Table of n, a(n) for n=2..91.

FORMULA

a(3n)=1; a( A047235(n))=2

PROG

(PARI) a(n)=if(n<0, 0, m=1; while((fibonacci(m*n^2+1)-fibonacci(m+1))%m==0, m++); m-1)

CROSSREFS

Sequence in context: A006126 A078357 A225432 * A249416 A062345 A077098

Adjacent sequences:  A086379 A086380 A086381 * A086383 A086384 A086385

KEYWORD

nonn

AUTHOR

Benoit Cloitre, Sep 06 2003

STATUS

approved

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Last modified April 19 09:52 EDT 2021. Contains 343110 sequences. (Running on oeis4.)