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Search: id:A127244
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| A127244 |
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A Thue-Morse signed falling factorial triangle. |
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+0
5
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| 1, -1, 1, 1, -1, 1, 0, 0, 0, 1, 0, 0, 0, -1, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, -1, 1, 0, 0, 0, 0, 0, 0, 1, -1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 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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Inverse of A127243. Row sums are A127245.
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FORMULA
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Number triangle T(n,k)=(-1)^(n-k)*Product{j=0..n-k-1,A010060(n-j)}*[k<=n]
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EXAMPLE
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Triangle begins
.1,
.-1, 1,
.1, -1, 1,
.0, 0, 0, 1,
.0, 0, 0, -1, 1,
.0, 0, 0, 0, 0, 1,
.0, 0, 0, 0, 0, 0, 1,
.0, 0, 0, 0, 0, 0, -1, 1,
.0, 0, 0, 0, 0, 0, 1, -1, 1,
.0, 0, 0, 0, 0, 0, 0, 0, 0, 1,
.0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1
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CROSSREFS
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Sequence in context: A152614 A127507 A127247 this_sequence A144778 A143142 A111940
Adjacent sequences: A127241 A127242 A127243 this_sequence A127245 A127246 A127247
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KEYWORD
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easy,tabl,sign
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AUTHOR
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Paul Barry (pbarry(AT)wit.ie), Jan 10 2007
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