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Search: id:A143969
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| 1, 5, 1, 5, 5, 6, 5, 5, 30, 16, 5, 5, 30, 80, 56, 5, 5, 30, 80, 280, 176, 5, 5, 30, 80, 280, 880, 1856, 5, 5, 30, 80, 280, 880, 9280, 6016, 5, 5, 30, 80, 280, 880, 9280, 30080, 19456
(list; table; graph; listen)
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OFFSET
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0,2
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COMMENT
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Right border = A084057: (1, 1, 6, 16, 56, 176,...). Row sums = (1, 6, 16, 56,...) = INVERT transform of (1, 5, 5, 5,...). Sum of n-th row terms = rightmost term of next row.
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FORMULA
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Eigentriangle by rows, n terms of (5 * A084057) followed by A084057(n).
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EXAMPLE
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First few rows of the triangle =
1;
5, 1;
5, 5, 6;
5, 5, 30, 16;
5, 5, 30, 80, 56;
5, 5, 30, 80, 280, 176;
5, 5, 30, 80, 280, 880, 1856;
...
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CROSSREFS
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A084057
Sequence in context: A122002 A073226 A021198 this_sequence A162797 A087232 A151780
Adjacent sequences: A143966 A143967 A143968 this_sequence A143970 A143971 A143972
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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 06 2008
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