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Search: id:A132044
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| 1, 1, 1, 1, 1, 1, 1, 2, 2, 1, 1, 3, 5, 3, 1, 1, 4, 9, 9, 4, 1, 1, 5, 14, 19, 14, 5, 1, 1, 6, 20, 34, 34, 20, 6, 1, 1, 7, 27, 55, 69, 55, 27, 7, 1, 1, 8, 35, 83, 125, 125, 83, 35, 8, 1
(list; table; graph; listen)
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OFFSET
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0,8
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COMMENT
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Row sums = A132045: (1, 2, 3, 6, 13, 28, 59,...).
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FORMULA
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A007318 + A103451 - 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, 1, 1;
1, 2, 2, 1;
1, 3, 5, 3, 1;
1, 4, 9, 9, 4, 1;
1, 5, 14, 19, 14, 5, 1;
1, 6, 20, 34, 34, 20, 6, 1;
1, 7, 27, 55, 69, 55, 27, 7, 1;
...
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CROSSREFS
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Cf. A007318, A103451, A132045.
Sequence in context: A034928 A144444 A054106 this_sequence A034327 A076835 A034254
Adjacent sequences: A132041 A132042 A132043 this_sequence A132045 A132046 A132047
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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 08 2007
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