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1, 2, 4, 2, 8, 4, 2, 12, 12, 4, 2, 16, 24, 16, 4, 2, 20, 40, 40, 20, 4, 2, 24, 60, 80, 60, 24, 4, 2, 28, 84, 140, 140, 84, 28, 4, 2, 32, 112, 224, 280, 224, 112, 32, 42, 36, 144, 336, 504, 504, 336, 144, 36, 4
(list; table; graph; refs; listen; history; internal format)
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OFFSET
| 0,2
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COMMENTS
| Row sums = A134067: (1, 6, 14, 30, 62, 126,...).
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FORMULA
| Triangle as infinite lower triangular matrix, (A134060 + A124928 - A007318).
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EXAMPLE
| First few rows of the triangle are:
1;
2, 4;
2, 8, 4;
2, 12, 12, 4;
2, 16, 24, 16, 4;
2, 20, 40, 40, 20, 4;
...
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CROSSREFS
| Cf. A134060, A124928, A134067.
Sequence in context: A059866 A093895 A030057 * A090988 A095728 A174147
Adjacent sequences: A134063 A134064 A134065 * A134067 A134068 A134069
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KEYWORD
| nonn,tabl
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AUTHOR
| Gary W. Adamson (qntmpkt(AT)yahoo.com), Oct 06 2007
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