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A131088 2*A051731 - A054525. 2
1, 3, 1, 3, 0, 1, 2, 3, 0, 1, 3, 0, 0, 0, 1, 1, 3, 3, 0, 0, 1, 3, 0, 0, 0, 0, 0, 1, 2, 2, 0, 3, 0, 0, 0, 1, 2, 0, 3, 0, 0, 0, 0, 0, 1, 1, 3, 0, 0, 3, 0, 0, 0, 0, 1 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Row sums = A131089. A131090: (1, 3, 3, 2, 3, 1, 3, 2, 2, 1,...) in every column interspersed with (k-1) zeros.

LINKS

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

FORMULA

2*A051731 - A054525 as infinite lower triangular matrices.

EXAMPLE

First few rows of the triangle are:

1;

3, 1;

3, 0, 1;

2, 3, 0, 1;

3, 0, 0, 0, 1;

1, 3, 3, 0, 0, 1

3, 0, 0, 0, 0, 0, 1;

2, 2, 0, 3, 0, 0, 0, 1;

...

CROSSREFS

Cf. A131089, A131090, A051731, A054525.

Sequence in context: A179656 A167274 A201679 * A136157 A266260 A143353

Adjacent sequences:  A131085 A131086 A131087 * A131089 A131090 A131091

KEYWORD

nonn,tabl

AUTHOR

Gary W. Adamson, Jun 14 2007

STATUS

approved

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Last modified May 18 09:26 EDT 2021. Contains 343995 sequences. (Running on oeis4.)