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Search: id:A130302
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| 1, 3, 1, 6, 2, 1, 10, 3, 2, 1, 15, 4, 3, 2, 1, 21, 5, 4, 3, 2, 1, 28, 6, 5, 4, 3, 2, 1, 36, 7, 6, 5, 4, 3, 2, 1
(list; table; graph; listen)
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OFFSET
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1,2
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COMMENT
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Row sums = n^2. A130303 = A130296 * A000012.
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FORMULA
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A000012 * A130296 as infinite lower triangular matrices. Triangular series as the left border; (1,2,3...) in all other columns.
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EXAMPLE
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First few rows of the triangle are:
1;
3, 1;
6, 2, 1;
10, 3, 2, 1;
15, 4, 3, 2, 1;
21, 5, 4, 3, 2, 1;
...
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CROSSREFS
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Cf. A130296, A130303.
Sequence in context: A109646 A007650 A067231 this_sequence A134546 A055151 A104573
Adjacent sequences: A130299 A130300 A130301 this_sequence A130303 A130304 A130305
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KEYWORD
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nonn,tabl
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AUTHOR
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Gary W. Adamson (qntmpkt(AT)yahoo.com), May 20 2007
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