login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A176917 Triangle read by rows, A077049 * the diagonalized version of A002033. 1
1, 1, 0, 1, 1, 0, 1, 0, 0, 0, 1, 1, 1, 0, 0, 1, 0, 0, 0, 0, 0, 1, 1, 0, 2, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0, 0, 1, 1, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 2, 0, 3, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,25

COMMENTS

Row sums = A002033 starting with offset 1: (1, 1, 2, 1, 3, 1, 4, 2, 3, 1, 8,...)

LINKS

Table of n, a(n) for n=1..78.

FORMULA

As infinite lower triangular matrices, A077049 * the diagonalized version of

A002033: (1, 1, 1, 2, 1, 3, 1, 4, 2,...) as the right border with the rest zeros.

EXAMPLE

First few rows of the triangle =

1;

1, 0;

1, 1, 0;

1, 0, 0, 0;

1, 1, 1, 0, 0;

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

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

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

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

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

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

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

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

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

1, 1, 0, 2, 0, 0, 0, 4, 0, 0, 0, 0, 0, 0, 0;

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

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

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

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

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

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

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

1, 1, 1, 2, 0, 3, 0, 4, 0, 0, 0, 8, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0;

...

CROSSREFS

Cf. A077049, A002033

Sequence in context: A156062 A156064 A158757 * A085983 A088183 A070140

Adjacent sequences:  A176914 A176915 A176916 * A176918 A176919 A176920

KEYWORD

nonn,tabl

AUTHOR

Gary W. Adamson & Mats Granvik, Apr 28 2010

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Superseeker | Recent | More pages
The OEIS Community | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement .

Last modified October 25 03:21 EDT 2014. Contains 248517 sequences.