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Search: id:A132733
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| 1, 1, 1, 1, 3, 1, 1, 7, 7, 1, 1, 11, 19, 11, 1, 1, 15, 35, 35, 15, 1, 1, 19, 55, 75, 55, 19, 1, 1, 23, 79, 135, 135, 79, 23, 1, 1, 27, 107, 219, 275, 219, 107, 27, 1, 1, 31, 139, 331, 499, 499, 331, 139, 31, 1
(list; table; graph; listen)
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OFFSET
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0,5
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COMMENT
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Row sums = A132734: (1, 2, 5, 16, 43, 102, 225,...).
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FORMULA
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2*A132731 - A000012 as infinite lower triangular matrices.
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EXAMPLE
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First few rows of the triangle are:
1;
1, 1;
1, 3, 1;
1, 7, 7, 1;
1, 11, 19, 11, 1;
1, 15, 35, 35, 15, 1;
1, 19, 55, 75, 55, 19, 1;
...
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CROSSREFS
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Cf. A132731, A132734.
Sequence in context: A008277 A080417 A133800 this_sequence A082039 A063394 A108470
Adjacent sequences: A132730 A132731 A132732 this_sequence A132734 A132735 A132736
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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 26 2007
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