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A138468 Number of even digits in Fibonacci numbers. 1
1, 0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 2, 1, 0, 2, 1, 0, 3, 2, 2, 3, 0, 3, 4, 2, 1, 3, 1, 3, 5, 4, 3, 3, 4, 4, 3, 3, 4, 5, 3, 4, 5, 4, 4, 3, 3, 3, 6, 5, 7, 6, 5, 2, 6, 6, 4, 6, 5, 8, 7, 6, 5, 6, 7, 5, 7, 7, 9, 8, 5, 7, 9, 5, 8, 7, 10, 6, 8, 11, 11, 8, 5, 5, 12, 7, 10, 9, 8, 7, 12, 11, 11, 11, 11, 9, 12 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,13

COMMENTS

Zero is counted as an even digit.

LINKS

Robert Israel, Table of n, a(n) for n = 0..10000

Ron Knott, The Fibonacci Numbers.

FORMULA

a(n) = A060384(n) - A136610(n). - Robert Israel, May 25 2017

EXAMPLE

The Fibonacci number 2584 has three even digits in it, so a(18) = 3.

CROSSREFS

Cf. A000045, A060384, A136610.

Sequence in context: A025672 A025665 A025841 * A029296 A096419 A283616

Adjacent sequences:  A138465 A138466 A138467 * A138469 A138470 A138471

KEYWORD

nonn,base,less

AUTHOR

Parthasarathy Nambi, May 18 2008

EXTENSIONS

a(0) corrected, and more terms from Robert Israel, May 25 2017

STATUS

approved

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Last modified October 20 14:40 EDT 2019. Contains 328267 sequences. (Running on oeis4.)