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A092155 First differences of A092673. 0
-3, 1, 2, -2, 3, -3, 1, 0, 2, -3, 0, 0, 3, -1, -1, -1, 1, -1, 0, 2, 1, -3, 1, 0, 2, -2, -1, 0, -1, 1, 1, 1, 1, -1, -1, -1, 3, -1, -1, -1, -1, 1, 0, 1, 2, -3, 1, 0, 0, 1, -2, 0, 1, 1, -1, 1, 1, -3, 2, -2, 3, -2, 0, 1, -3, 1, 0, 2, -3, 1, 1, -1, 3, -2, -1, 2, -3, 1, 1, 0, 2, -3, 2, 0, 1, -1, -1, -1, 1, 1, -2, 2, 1, -1, -1, -1, 1, 0, 0, -1, -1, 1, 1, -1, 3 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Empirical: For n > 1, letting M(n) denote the n X n matrix whereby the (i,j)-entry of M(n) is -Sum_{k=1..j} floor(i/k), we have that the first n-1 entries in the first column of the inverse of M(n) are a(1) through a(n-1). - John M. Campbell, Aug 30 2017

LINKS

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

CROSSREFS

Sequence in context: A161916 A072548 A079399 * A288725 A029336 A211939

Adjacent sequences:  A092152 A092153 A092154 * A092156 A092157 A092158

KEYWORD

sign

AUTHOR

Jon Perry, Mar 31 2004

STATUS

approved

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Last modified May 25 04:50 EDT 2019. Contains 323539 sequences. (Running on oeis4.)