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A129565 A115359 * A000012 as infinite lower triangular matrices. 1
1, 0, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row sums = A026741: (1, 1, 3, 2, 5, 3, 7, 4, 9, 5,...)

LINKS

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

FORMULA

A115359 * A000012 as infinite lower triangular matrices. Odd rows: n 1's; even rows, n/2 zeros followed by n/2 1's.

EXAMPLE

First few rows of the triangle are:

1;

0, 1;

1, 1, 1;

0, 0, 1, 1;

1, 1, 1, 1, 1;

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

...

CROSSREFS

Cf. A115359, A000012, A026741.

Sequence in context: A153639 A319102 A103582 * A225145 A121967 A285430

Adjacent sequences:  A129562 A129563 A129564 * A129566 A129567 A129568

KEYWORD

nonn,tabl

AUTHOR

Gary W. Adamson, Apr 21 2007

EXTENSIONS

Name corrected by Gary W. Adamson, Mar 14 2011

STATUS

approved

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Last modified November 22 13:47 EST 2019. Contains 329393 sequences. (Running on oeis4.)