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Search: id:A133116
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| 1, 1, 1, 3, 1, 1, 3, 3, 5, 1, 5, 3, 13, 5, 1, 5, 5, 25, 13, 9, 1, 7, 5, 43, 25, 31, 9, 1, 7, 7, 67, 43, 79, 31, 13, 1, 9, 7, 99, 67, 171, 79, 57, 13, 1, 9, 9, 139, 99, 331, 171, 181, 57, 17, 1
(list; table; graph; listen)
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OFFSET
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2,4
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COMMENT
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Row sums = A000325, 2^n - n: (1, 2, 5, 12, 27, 58, 121,...).
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FORMULA
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2*A133114 - 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;
3, 1, 1;
3, 3, 5, 1;
5, 3, 13, 5, 1;
5, 5, 25, 13, 9, 1;
7, 5, 43, 25, 31, 9, 1;
7, 7, 67, 43, 79, 31, 13, 1;
...
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CROSSREFS
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Cf. A133114, A000012.
Sequence in context: A035666 A060592 A080426 this_sequence A059959 A051120 A114476
Adjacent sequences: A133113 A133114 A133115 this_sequence A133117 A133118 A133119
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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), Sep 14 2007
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