A195376 Parity of EKG sequence A064413.

1, 0, 0, 0, 1, 1, 0, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 0, 0, 1, 1, 1, 0, 1, 1, 0, 0, 1, 1, 0, 0, 0, 1, 1, 0, 0, 1, 1, 1, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 1, 1, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 0, 1, 0, 0, 1, 1, 0, 1, 1, 0

Offset

1

Comments

Characteristic function of odd terms in A064413: a(A064957(n)) = 1 and a(A064953(n)) = 0;

A064654 gives lengths of runs of zeros and ones.

Links

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

Eric Weisstein's World of Mathematics, EKG Sequence

Index entries for sequences related to EKG sequence

Index entries for characteristic functions

Formula

a(n) = A064413(n) mod 2.

a(n) = A000035(A064413(n)). - Omar E. Pol, Oct 28 2013

Prog

(Haskell)
a195376 n = a195376_list !! (n-1)
a195376_list = map (`mod` 2) a064413_list
-- Reinhard Zumkeller, Sep 17 2001

Crossrefs

Sequence in context: A369653 A120528 A287663 * A164950 A068433 A266895

Adjacent sequences: A195373 A195374 A195375 * A195377 A195378 A195379

Keyword

nonn

Author

Reinhard Zumkeller, Sep 17 2011

Status

approved