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

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A130271 Triangle read by rows: A051340^2. 0
1, 3, 4, 5, 5, 9, 7, 7, 7, 16, 9, 9, 9, 9, 25, 11, 11, 11, 11, 11, 36, 13, 13, 13, 13, 13, 13, 49, 15, 15, 15, 15, 15, 15, 15, 64 (list; table; graph; refs; listen; history; internal format)
OFFSET

1,2

COMMENTS

Row sums = A003215: (1, 7, 19, 37, 61, 91, 127,...).

FORMULA

The square of A051340 as an infinite lower triangular matrix.

EXAMPLE

First few rows of the triangle are:

1;

3, 4;

5, 5, 9;

7, 7, 7, 16;

9, 9, 9, 9, 25;

11, 11, 11, 11, 11, 36;

13, 13, 13, 13, 13, 13, 49;

...

CROSSREFS

Cf. A051340, A003215.

Sequence in context: A024357 A199084 A181132 * A139369 A151555 A103606

Adjacent sequences:  A130268 A130269 A130270 * A130272 A130273 A130274

KEYWORD

nonn,tabl

AUTHOR

Gary W. Adamson (qntmpkt(AT)yahoo.com), May 18 2007

EXTENSIONS

Edited by N. J. A. Sloane (njas(AT)research.att.com), Jan 05 2009

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

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

Last modified February 16 09:00 EST 2012. Contains 205904 sequences.