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A134560 A051731 * A127775. +0
2
1, 1, 3, 1, 0, 5, 1, 3, 0, 7, 1, 0, 0, 0, 9, 1, 3, 5, 0, 0, 11, 1, 0, 0, 0, 0, 0, 13, 1, 3, 0, 7, 0, 0, 0, 15, 1, 0, 5, 0, 0, 0, 0, 0, 17, 1, 3, 0, 0, 9, 0, 0, 0, 0, 19 (list; table; graph; listen)
OFFSET

1,3

COMMENT

Row sums = A129235: (1, 4, 6, 11, 10, 20, 14,...).

FORMULA

A051731 * A127775 as infinite lower triangular matrices. Triangle by columns: replace the 1's in column k of A051731 with (2k-1).

EXAMPLE

First few rows of the triangle are:

1;

1, 3;

1, 0, 5;

1, 3, 0, 7;

1, 0, 0, 0, 9;

1, 3, 5, 0, 0, 11;

1, 0, 0, 0, 0, 0, 13;

1, 3, 0, 7, 0, 0, 0, 15;

...

CROSSREFS

Cf. A129235, A051731, A127775.

Sequence in context: A127627 A154792 A119302 this_sequence A127626 A154791 A121440

Adjacent sequences: A134557 A134558 A134559 this_sequence A134561 A134562 A134563

KEYWORD

nonn,tabl

AUTHOR

Gary W. Adamson (qntmpkt(AT)yahoo.com), Oct 31 2007

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Last modified December 21 10:15 EST 2009. Contains 171081 sequences.


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