| 1, 0, 3, 1, 0, 5, 0, 3, 0, 7, 1, 0, 5, 0, 9, 0, 3, 0, 7, 0, 11, 1, 0, 5, 0, 9, 0, 13, 0, 3, 0, 7, 0, 11, 0, 15, 1, 0, 5, 0, 9, 0, 13, 0, 17, 0, 0, 3, 0, 7, 0, 11, 0, 15, 0, 19
(list; graph; listen)
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OFFSET
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1,3
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COMMENT
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Row sums = the triangular series: (1, 3, 6, 10,...).
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FORMULA
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A128174 * A127775 as infinite lower triangular matrices. Triangle by columns: (2k-1, 0, 2k-1, 0,...) in k-th column.
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CROSSREFS
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Sequence in context: A127570 A045406 A143468 this_sequence A127627 A154792 A119302
Adjacent sequences: A133725 A133726 A133727 this_sequence A133729 A133730 A133731
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KEYWORD
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nonn
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AUTHOR
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Gary W. Adamson (qntmpkt(AT)yahoo.com), Sep 21 2007
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