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Search: id:A128973
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| 1, 0, 1, 1, 1, 1, 1, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1, 0, 1, 0, 0, 0, 0, 1, 0, 0, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 0, 1, 1, 1, 1, 0, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 0, 0, 0, 1, 0, 0, 1, 1, 0, 0, 1
(list; table; graph; listen)
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OFFSET
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0,1
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COMMENT
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Also triangle formed by reading triangles A089942, A124733, A126331, A126791, A126970 modulo 2 .
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FORMULA
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T(n,0)=A035263(n). Sum_{k, 0<=k<=n}T(n,k)*(-1)^k = (-1)^n .
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EXAMPLE
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Triangle begins:
1;
0, 1;
1, 1, 1;
1, 1, 0, 1;
1, 0, 0, 1, 1;
0, 1, 1, 0, 0, 1;
1, 0, 0, 1, 1, 1, 1;
0, 1, 1, 0, 1, 1, 0, 1;
1, 0, 0, 0, 0, 0, 0, 1, 1;
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CROSSREFS
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Sequence in context: A153860 A162519 A072418 this_sequence A013596 A131695 A105812
Adjacent sequences: A128970 A128971 A128972 this_sequence A128974 A128975 A128976
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KEYWORD
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nonn,tabl
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AUTHOR
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Philippe DELEHAM (kolotoko(AT)wanadoo.fr), Apr 28 2007
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