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Search: id:A125027
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| A125027 |
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Binomial transform of the "1,2,3..." triangle. |
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+0
1
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| 1, 3, 3, 9, 11, 6, 26, 32, 27, 10, 72, 86, 85, 54, 15, 192, 222, 233, 189, 95, 21, 496, 558, 597, 549, 371, 153, 28, 1248, 1374, 1473, 1446, 1160, 664231, 36
(list; table; graph; listen)
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OFFSET
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1,2
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COMMENT
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Left border, (1, 3, 9, 26, 72, 192...) = A072863, A121286.
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FORMULA
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Given the triangle (natural numbers in succession: 1; 2,3; 4,5,6;...) as an infinite matrix M and P = Pascal's triangle as a lower triangular matrix, perform P*M, deleting the zeros.
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EXAMPLE
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First few rows of the triangle are:
1;
3, 3;
9, 11, 6;
26, 32, 27, 10;
72, 86, 85, 54, 15;
...
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CROSSREFS
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Cf. A072863, A121286.
Sequence in context: A121072 A133164 A022156 this_sequence A005296 A124281 A146153
Adjacent sequences: A125024 A125025 A125026 this_sequence A125028 A125029 A125030
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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), Nov 15 2006
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