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Search: id:A133935
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| 1, 1, 1, 1, 2, 3, 1, 3, 9, 1, 1, 4, 18, 4, 5, 1, 5, 30, 10, 25, 1, 1, 6, 45, 20, 75, 6, 7, 1, 7, 63, 35, 175, 21, 49, 1, 1, 8, 84, 56, 350, 56, 196, 8, 9, 1, 9, 108, 84, 630, 126, 588, 36, 81, 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 = A133936: (1, 2, 6, 14, 32, 72, 160,...)
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FORMULA
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Binomial transform of an infinite lower triangular matrix with A093178: (1, 1, 3, 1, 5, 1, 7,...) in the main diagonal and the rest zeros.
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EXAMPLE
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First few rows of the triangle are:
1;
1, 1;
1, 2, 3;
1, 3, 9, 1;
1, 4, 18, 4, 5;
1, 5, 30, 10, 25, 1;
1, 6, 45, 20, 75, 6, 7;
1, 7, 63, 35, 175, 21, 49, 1;
...
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CROSSREFS
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Cf. A093178, A133936.
Sequence in context: A119011 A130477 A058127 this_sequence A139633 A134319 A135091
Adjacent sequences: A133932 A133933 A133934 this_sequence A133936 A133937 A133938
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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 29 2007
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