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A127774
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Triangle read by rows: row n consists of n-1 zeros followed by A000292(n).
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2
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1, 0, 4, 0, 0, 10, 0, 0, 0, 20, 0, 0, 0, 0, 35, 0, 0, 0, 0, 0, 56, 0, 0, 0, 0, 0, 0, 84, 0, 0, 0, 0, 0, 0, 0, 120, 0, 0, 0, 0, 0, 0, 0, 0, 165, 0, 0, 0, 0, 0, 0, 0, 0, 0, 220, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 286, 0
(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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Essentially triangle T(n,k), read by rows, given by (0,0,0,0,0,0,0,...) DELTA (4,-3/2,5/6,-1/3,3/5,-1/10,1/2,0,0,0,0,0,0,0,...) where DELTA is the operator defined in A084938. - Philippe Deléham, Nov 14 2011
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LINKS
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FORMULA
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EXAMPLE
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First few rows of the triangle are:
1;
0, 4;
0, 0, 10;
0, 0, 0, 20;
0, 0, 0, 0, 35;
...
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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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