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A131852 Imaginary part of the function z defined in A131851. 12
0, 0, 1, 1, 0, 0, 1, 1, -1, -1, 0, 0, -1, -1, 0, 0, 0, 0, 1, 1, 0, 0, 1, 1, -1, -1, 0, 0, -1, -1, 0, 0, 1, 1, 2, 2, 1, 1, 2, 2, 0, 0, 1, 1, 0, 0, 1, 1, 1, 1, 2, 2, 1, 1, 2, 2, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, -1, -1, 0, 0, -1, -1, 0, 0, 0, 0, 1, 1, 0, 0, 1, 1, -1, -1, 0, 0, -1, -1, 0, 0, 1, 1, 2, 2, 1, 1, 2, 2, 0, 0, 1, 1, 0, 0, 1, 1, 1, 1, 2, 2, 1, 1, 2, 2, 0 (list; graph; refs; listen; history; internal format)
OFFSET

0,35

COMMENTS

a(A000079(n)) = A056594(n+3);

a(A131855(n))=0; a(A131862(n))>0; a(A131857(n))=1; a(A131864(n))<0;

for n>0: a(A098704(n+1))=n and ABS(a(m))<n for m < A098704(n+1).

LINKS

R. Zumkeller, Table of n, a(n) for n = 0..10000

CROSSREFS

Sequence in context: A104482 A020945 A016429 * A139352 A089679 A199010

Adjacent sequences:  A131849 A131850 A131851 * A131853 A131854 A131855

KEYWORD

sign

AUTHOR

Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Jul 22 2007

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Last modified February 14 10:24 EST 2012. Contains 205614 sequences.