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Search: id:A133114
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| 1, 1, 1, 2, 1, 1, 2, 2, 3, 1, 3, 2, 7, 3, 1, 3, 3, 13, 7, 5, 1, 4, 3, 22, 13, 16, 5, 1, 4, 4, 34, 22, 40, 16, 7, 1, 5, 4, 50, 34, 86, 40, 29, 7, 1, 5, 5, 70, 50, 166, 86, 91, 29, 9, 1
(list; table; graph; listen)
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OFFSET
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1,4
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COMMENT
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Row sums = 2^n
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FORMULA
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A000012(signed) * A007318 * A133080 as infinite lower triangular matrices, where A000012(signed) = [1; -1,1; 1,-1,1; -1,1,-1,1;...).
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EXAMPLE
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First few rows of the triangle are:
1;
1, 1;
2, 1, 1;
2, 2, 3, 1;
3, 2, 7, 3, 1;
3, 3, 13, 7, 5, 1;
4, 3, 22, 13, 16, 5, 1;
4, 4, 34, 22, 40, 16, 7, 1;
...
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CROSSREFS
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Cf. A000012, A133080, A007318.
Sequence in context: A057820 A054012 A062083 this_sequence A029333 A029261 A100480
Adjacent sequences: A133111 A133112 A133113 this_sequence A133115 A133116 A133117
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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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