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A113322 First differences of A113321. 2
1, 2, -1, 3, -1, 4, -2, 5, -4, 6, -4, 7, -6, 8, -6, 9, -7, 10, -9, 11, -9, 12, -10, 13, -12, 14, -12, 15, -14, 16, -14, 17, -15, 18, -17, 19, -17, 20, -19, 21, -19, 22, -20, 23, -22, 24, -22, 25, -23, 26, -25, 27, -25, 28, -27, 29, -27, 30, -28, 31, -30, 32, -30, 33, -31, 34 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

a(n) = A113321(n+1) - A113321(n);

A000027 is a subsequence: a(A004277(n-1)) = n.

LINKS

Table of n, a(n) for n=1..66.

CROSSREFS

Sequence in context: A100053 A029194 A059499 * A007380 A029171 A079786

Adjacent sequences:  A113319 A113320 A113321 * A113323 A113324 A113325

KEYWORD

sign

AUTHOR

Reinhard Zumkeller, Oct 26 2005

STATUS

approved

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Last modified May 21 07:04 EDT 2013. Contains 225477 sequences.