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A129688 A129686 * A128174. 2
1, 0, 1, 2, 0, 1, 0, 2, 0, 1, 2, 0, 2, 0, 1, 0, 2, 0, 2, 0, 1, 2, 0, 2, 0, 2, 0, 1, 0, 2, 0, 2, 0, 2, 0, 1, 2, 0, 2, 0, 2, 0, 2, 0, 1, 0, 2, 0, 2, 0, 2, 0, 2, 0, 1 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,4

COMMENTS

Row sums = A109613: (1, 1, 3, 3, 5, 5,...).

LINKS

Table of n, a(n) for n=1..55.

FORMULA

A129686 * A128174 as infinite lower triangular matrices. (1, 0, 2, 0, 2, 0, 2,...) in every column.

EXAMPLE

First few rows of the triangle are:

1;

0, 1;

2, 0, 1;

0, 2, 0, 1;

2, 0, 2, 0, 1;

...

CROSSREFS

Cf. A129686, A128174, A109613.

Sequence in context: A091603 A325036 A194942 * A086713 A275730 A049771

Adjacent sequences:  A129685 A129686 A129687 * A129689 A129690 A129691

KEYWORD

nonn,tabl

AUTHOR

Gary W. Adamson, Apr 28 2007

STATUS

approved

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Last modified May 24 17:09 EDT 2019. Contains 323533 sequences. (Running on oeis4.)