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A133728 A128174 * A127775. +0
2
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)
OFFSET

1,3

COMMENT

Row sums = the triangular series: (1, 3, 6, 10,...).

FORMULA

A128174 * A127775 as infinite lower triangular matrices. Triangle by columns: (2k-1, 0, 2k-1, 0,...) in k-th column.

CROSSREFS

Adjacent sequences: A133725 A133726 A133727 this_sequence A133729 A133730 A133731

Sequence in context: A127570 A045406 A143468 this_sequence A127627 A119302 A134560

KEYWORD

nonn

AUTHOR

Gary W. Adamson (qntmpkt(AT)yahoo.com), Sep 21 2007

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Last modified October 10 20:39 EDT 2008. Contains 144831 sequences.


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