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A090229 Differences between consecutive nonprime Fibonacci numbers (A090206). 0
1, 0, 7, 13, 13, 21, 89, 233, 233, 377, 1597, 1597, 2584, 4181, 6765, 28657, 28657, 46368, 75025, 121393, 514229, 514229, 832040, 1346269, 2178309, 3524578, 5702887, 9227465, 14930352 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Table of n, a(n) for n=0..28.

FORMULA

F(0) = 0; F(1) = 1; F(n) = F(n-1) + F(n-2); F(0:9) = 0, 1, 1, 2, 3, 5, 8, 13, 21, 34 nonprimes: 0, 1, 1, 8, 21 differences between consecutive nonprimes: 1, 0, 7, 13

CROSSREFS

Sequence in context: A243044 A229831 A145009 * A259222 A204713 A241985

Adjacent sequences:  A090226 A090227 A090228 * A090230 A090231 A090232

KEYWORD

easy,nonn

AUTHOR

Felix Tubiana (fat2(AT)columbia.edu), Jan 22 2004

STATUS

approved

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Last modified September 28 14:58 EDT 2021. Contains 347716 sequences. (Running on oeis4.)