A107015 - OEIS

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A107015

Number of even terms in Zeckendorf representation of n.

8

0, 1, 0, 0, 0, 0, 1, 1, 1, 2, 1, 1, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 0, 0, 1, 1, 1, 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 2, 2, 2, 3, 2, 2, 1, 1, 2, 1, 1, 1, 1, 2, 0, 0, 1, 0, 0, 0, 0, 1, 1, 1, 2, 1, 1, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 0, 0, 1, 1, 1, 2, 1, 1, 0, 0, 1, 0, 0, 0, 0, 1, 1, 1, 2, 1, 1, 0, 0, 1, 0

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OFFSET

1,10

COMMENTS

a(n) = A007895(n) - A107016(n).

a(A107228(n)) = 0. - Reinhard Zumkeller, May 15 2005

LINKS

Reinhard Zumkeller, Table of n, a(n) for n = 1..10000

Eric Weisstein's World of Mathematics, Zeckendorf Representation

EXAMPLE

n = 77 = 55+21+1 -> a(77) = #{} = 0;

n = 88 = 55+21+8+3+1 -> a(88) = #{8} = 1;

n = 99 = 89+8+2 -> a(99) = #{2, 8} = 2.

PROG

(Haskell)

a107015 = length . filter even . a035516_row

-- Reinhard Zumkeller, Mar 10 2013

CROSSREFS

Cf. A107224, A107225, A107226.

Sequence in context: A143809 A056559 A117200 * A015374 A164058 A328712

Adjacent sequences: A107012 A107013 A107014 * A107016 A107017 A107018

KEYWORD

nonn

AUTHOR

Reinhard Zumkeller, May 09 2005

STATUS

approved