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A177446 Triangle read by rows, A000012 * A177445 * the diagonalized variant of A120562 1
1, 2, 0, 2, 1, 0, 3, 2, 0, 0, 3, 2, 1, 0, 0, 3, 3, 2, 0, 0, 0, 3, 3, 2, 2, 0, 0, 0, 3, 3, 3, 4, 0, 0, 0, 0, 3, 3, 3, 4, 1, 0, 0, 0, 0, 3, 3, 3, 6, 2, 0, 0, 0, 0, 0, 3, 3, 3, 6, 2, 2, 0, 0, 0, 0, 0, 3, 3, 3, 6, 3, 4, 0, 0, 0, 0, 0, 0, 3, 3, 3, 6, 3, 4, 2, 0, 0, 0, 0, 0, 0 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

0,2

COMMENTS

Row sums = A177445. Rows apparently tend to 3 * A120562 = 3 * (1, 1, 1, 2, 1, 2, 2, 3, 1, 3,...).

LINKS

Table of n, a(n) for n=0..90.

FORMULA

Triangle read by rows, M*Q*R; such that M = an infinite lower triangular matrix with

all 1's, Q = triangle A177444, and R = the diagonalized variant of A120562

(A120562 as the right diagonal and the rest zeros).

EXAMPLE

First few rows of the triangle =

1;

2, 0;

2, 1, 0;

3, 2, 0, 0;

3, 2, 1, 0, 0;

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

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

3, 3, 3, 4, 0, 0, 0, 0;

3, 3, 3, 4, 1, 0, 0, 0, 0;

3, 3, 3, 6, 2, 0, 0, 0, 0, 0;

3, 3, 3, 6, 2, 2, 0, 0, 0, 0, 0;

3, 3, 3, 6, 3, 4, 0, 0, 0, 0, 0, 0;

3, 3, 3, 6, 3, 4, 2, 0, 0, 0, 0, 0, 0;

3, 3, 3, 6, 3, 6, 4, 0, 0, 0, 0, 0, 0, 0;

3, 3, 3, 6, 3, 6, 4, 3, 0, 0, 0, 0, 0, 0, 0;

...

CROSSREFS

Cf. A177444, A177445, A120562

Sequence in context: A321361 A319517 A321460 * A074905 A058548 A157030

Adjacent sequences:  A177443 A177444 A177445 * A177447 A177448 A177449

KEYWORD

nonn,tabl

AUTHOR

Gary W. Adamson, May 08 2010

STATUS

approved

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Last modified October 21 03:38 EDT 2021. Contains 348141 sequences. (Running on oeis4.)