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A134444 (A000012 * A128174 + A128174 * A000012) - A000012. 1
1, 1, 1, 3, 1, 1, 3, 3, 1, 1, 5, 3, 3, 1, 1, 5, 5, 3, 3, 1, 1, 7, 5, 5, 3, 3, 1, 1, 7, 7, 5, 5, 3, 3, 1, 1, 9, 7, 7, 5, 5, 3, 3, 1, 1, 9, 9, 7, 7, 5, 5, 3, 3, 1, 1 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

0,4

COMMENTS

Row sums = A000982: (1, 2, 5, 8, 13, 18, 25,...).

LINKS

Table of n, a(n) for n=0..54.

FORMULA

(A000012 * A128174 + A128174 * A000012) - A000012, as infinite lower triangular matrices. Triangle read by rows, n-th row = n terms of odd numbers repeated, starting from the right.

EXAMPLE

First few rows of the triangle are:

1;

1, 1;

3, 1, 1;

3, 3, 1, 1;

5, 3, 3, 1, 1;

5, 5, 3, 3, 1, 1;

...

CROSSREFS

Cf. A128174, A000012, A000982.

Sequence in context: A327481 A152714 A174546 * A176149 A091442 A025834

Adjacent sequences:  A134441 A134442 A134443 * A134445 A134446 A134447

KEYWORD

nonn,tabl

AUTHOR

Gary W. Adamson, Oct 25 2007

STATUS

approved

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Last modified June 13 20:01 EDT 2021. Contains 345009 sequences. (Running on oeis4.)