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A155031 A154990*A155029 +0
2
1, 0, 1, 0, -1, 1, 0, 0, -1, 1, 0, -1, -1, -1, 1, 0, 0, 0, -1, -1, 1, 0, -1, -1, -1, -1, -1, 1, 0, 0, -1, 0, -1, -1, -1, 1, 0, -1, 0, -1, -1, -1, -1, -1, 1, 0, 0, -1, -1, 0, -1, -1, -1, -1, 1, 0, -1, -1, -1, -1, -1, -1, -1, -1, -1, 1, 0, 0, 0, 0, -1, 0, -1, -1, -1, -1, -1, 1, 0, -1, -1, -1 (list; table; graph; listen)
OFFSET

1,1

EXAMPLE

Table begins:

1,

0,1,

0,-1,1,

0,0,-1,1,

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

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

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

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

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

MAPLE

(Excel cell formula) =if(row()>=column(); if(row()=column(); 1; if(mod(row(); column()); -1; 0)); 0)

CROSSREFS

Sequence in context: A087748 A117446 A101688 this_sequence A155029 A134540 A128430

Adjacent sequences: A155028 A155029 A155030 this_sequence A155032 A155033 A155034

KEYWORD

sign,tabl

AUTHOR

Mats Granvik (mats.granvik(AT)abo.fi), Jan 19 2009

page 1

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.


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