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A130888
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Triangle read by rows, A051731(n,k) dot (1, 3, 7, 15, ...) with like numbers of terms.
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0
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1, 1, 3, 1, 0, 7, 1, 3, 0, 15, 1, 0, 0, 0, 31, 1, 3, 7, 0, 0, 63, 1, 0, 0, 0, 0, 0, 127, 1, 3, 0, 15, 0, 0, 0, 255
(list;
table;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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1,3
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COMMENTS
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Row sums = A130887: (1, 4, 8, 19, 32, 74, 128, 274, 519, 1058, ...).
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LINKS
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FORMULA
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Triangle read by rows, dot product of each row of A051731 and the same number of terms in the series (1, 3, 7, 15, ...).
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EXAMPLE
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First few rows of the triangle:
1;
1, 3;
1, 0, 7;
1, 3, 0, 15;
1, 0, 0, 0, 31;
1, 3, 7, 0, 0, 63;
...
Row 4 = (1, 3, 0, 15) = (1, 1, 0, 1) dot (1, 3, 7, 15); where (1, 1, 0, 1) = row 4 of A051731.
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CROSSREFS
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KEYWORD
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AUTHOR
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STATUS
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approved
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