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Search: id:A143470
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| 1, 3, 1, 7, 1, 1, 11, 3, 1, 1, 19, 3, 1, 1, 1, 23, 7, 3, 1, 1, 1, 35, 7, 3, 1, 1, 1, 43, 11, 3, 3, 1, 1, 1, 1, 55, 11, 7, 3, 1, 1, 1, 1, 1, 63, 19, 7, 3, 31, 1, 1, 1, 1, 83, 19, 7, 3, 3, 1, 1, 1, 1, 1, 1, 91, 23, 11, 7, 3, 3, 1, 1, 1, 1, 1, 1, 115, 23, 11, 7, 3, 3, 1, 1, 1, 1, 1, 1, 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
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FORMULA
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Triangle read by rows, A000012 * A143316, 1<=k<=n, where the operation A000012 * A143316 takes partial sums of A143316 terms by columns.
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EXAMPLE
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First few rows of the triangle =
1;
3, 1;
7, 1, 1;
11, 3, 1, 1;
19, 3, 1, 1, 1;
23, 7, 3, 1, 1, 1;
35, 7, 3, 1, 1, 1, 1;
...
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CROSSREFS
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Cf. A143316.
Sequence in context: A128605 A051511 A026499 this_sequence A114580 A097229 A097862
Adjacent sequences: A143467 A143468 A143469 this_sequence A143471 A143472 A143473
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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), Aug 17 2008
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