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A182702
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Triangle T(n,k) = n*(A000041(n-k)) read by rows, k>=0.
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4
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1, 4, 2, 9, 6, 3, 20, 12, 8, 4, 35, 25, 15, 10, 5, 66, 42, 30, 18, 12, 6
(list;
table;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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1,2
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COMMENTS
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The same as A182700, but without the last term of row n.
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LINKS
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Table of n, a(n) for n=1..21.
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EXAMPLE
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Triangle begins:
1,
4, 2,
9, 6, 3,
20, 12, 8, 4,
35, 25, 15, 10, 5,
66, 42, 30, 18, 12, 6,
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CROSSREFS
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Cf. A000041, A135010, A138121, A182701, A182702.
Column 1 give A066186.
Sequence in context: A082156 A114577 A191426 * A101690 A213781 A200639
Adjacent sequences: A182699 A182700 A182701 * A182703 A182704 A182705
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KEYWORD
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nonn,tabl,more
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AUTHOR
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Omar E. Pol, Nov 28 2010
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STATUS
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approved
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