A133912 - OEIS

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A133912

First differences of A007001.

1, 1, -1, 1, 1, -2, 1, -1, 1, 1, -2, 1, 1, 1, -3, 1, -1, 1, 1, -2, 1, -1, 1, 1, -2, 1, 1, 1, -3, 1, -1, 1, 1, -2, 1, 1, 1, -3, 1, 1, 1, 1, -4, 1, -1, 1, 1, -2, 1, -1, 1, 1, -2, 1, 1, 1, -3, 1, -1, 1, 1, -2, 1, -1, 1, 1, -2, 1, 1, 1, -3, 1, -1, 1, 1, -2, 1, 1, 1, -3, 1, 1, 1, 1, -4, 1, -1, 1, 1, -2, 1, -1, 1, 1, -2, 1, 1, 1, -3, 1, -1, 1, 1, -2, 1

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

OFFSET

1,6

LINKS

Table of n, a(n) for n=1..105.

EXAMPLE

a(5) = 1 = A007001(5) - A007001(4) = (3 - 2).

CROSSREFS

Cf. A007001, A133913, A133914.

Sequence in context: A230799 A279496 A151683 * A277231 A122934 A072170

Adjacent sequences: A133909 A133910 A133911 * A133913 A133914 A133915

KEYWORD

sign

AUTHOR

Gary W. Adamson, Sep 28 2007

EXTENSIONS

More terms from Colin Barker, Apr 19 2015

STATUS

approved