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Search: id:A130271
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| 1, 3, 4, 5, 5, 9, 7, 7, 7, 16, 9, 9, 9, 9, 25, 11, 11, 11, 11, 11, 36, 13, 13, 13, 13, 13, 13, 49, 15, 15, 15, 15, 15, 15, 15, 64
(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 = A003215: (1, 7, 19, 37, 61, 91, 127,...).
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FORMULA
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The square of A051340 as an infinite lower triangular matrix.
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EXAMPLE
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First few rows of the triangle are:
1;
3, 4;
5, 5, 9;
7, 7, 7, 16;
9, 9, 9, 9, 25;
11, 11, 11, 11, 11, 36;
13, 13, 13, 13, 13, 13, 49;
...
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CROSSREFS
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Cf. A051340, A003215.
Sequence in context: A061146 A082514 A024357 this_sequence A139369 A151555 A103606
Adjacent sequences: A130268 A130269 A130270 this_sequence A130272 A130273 A130274
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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 18 2007
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EXTENSIONS
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Edited by N. J. A. Sloane (njas(AT)research.att.com), Jan 05 2009
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