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Search: id:A155076
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| A155076 |
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Triangle read by rows. The main diagonal is positive. If rowindex >= 2*columnindex then -1 else 0. |
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+0
2
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| 1, -1, 1, -1, 0, 1, -1, -1, 0, 1, -1, -1, 0, 0, 1, -1, -1, -1, 0, 0, 1, -1, -1, -1, 0, 0, 0, 1, -1, -1, -1, -1, 0, 0, 0, 1, -1, -1, -1, -1, 0, 0, 0, 0, 1, -1, -1, -1, -1, -1, 0, 0, 0, 0, 1, -1, -1, -1, -1, -1, 0, 0, 0, 0, 0, 1, -1, -1, -1, -1, -1, -1, 0, 0, 0, 0, 0, 1, -1, -1, -1, -1, -1, -1, 0
(list; table; graph; listen)
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OFFSET
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1,1
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COMMENT
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Matrix inverse of this triangle is A155077.
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EXAMPLE
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Table begins:
1,
-1,1,
-1,0,1,
-1,-1,0,1,
-1,-1,0,0,1,
-1,-1,-1,0,0,1,
-1,-1,-1,0,0,0,1,
-1,-1,-1,-1,0,0,0,1,
-1,-1,-1,-1,0,0,0,0,1,
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CROSSREFS
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Cf. A000123.
Sequence in context: A103994 A051731 A135839 this_sequence A120529 A099443 A132342
Adjacent sequences: A155073 A155074 A155075 this_sequence A155077 A155078 A155079
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KEYWORD
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sign,tabl
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AUTHOR
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Mats Granvik, Gary W. Adamson (mats.granvik(AT)abo.fi), Jan 19 2009
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