A167687 - OEIS

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A167687

a(n)=A167683(n)-A167686(n).

0

0, 1, 0, 2, -1, 1, 0, 0, 0, 1, 0, -1, 0, 0, 0, 2, -1, 0, 0, -1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 2, -1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, -1, 0, 0, 0, 0, 0, 0, 0, 2, -1, 0, 0, 0, 0, 0, 0, -1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, -1

(list; graph; refs; listen; history; text; internal format)

OFFSET

0,4

LINKS

Table of n, a(n) for n=0..100.

CROSSREFS

Sequence in context: A269241 A086013 A340671 * A064692 A286106 A079677

Adjacent sequences: A167684 A167685 A167686 * A167688 A167689 A167690

KEYWORD

sign

AUTHOR

Paul Barry, Nov 09 2009

STATUS

approved