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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A134575 A051731 * A127733. 1
1, 1, 4, 1, 0, 9, 1, 4, 0, 16, 1, 0, 0, 0, 25, 1, 4, 9, 0, 0, 36, 1, 0, 0, 0, 0, 0, 49, 1, 4, 0, 16, 0, 0, 0, 64, 1, 0, 9, 0, 0, 0, 0, 0, 81, 1, 4, 0, 0, 25, 0, 0, 0, 0, 100 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,3

COMMENTS

Row sums = A001157: (1, 5, 10, 21, 26, 25, 50, 50,...)

LINKS

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

FORMULA

A051731 * A127733 as infinite lower triangular matrices.

EXAMPLE

First few rows of the triangle are:

1;

1, 4;

1, 0, 9;

1, 4, 0, 16;

1, 0, 0, 0, 25;

1, 4, 9, 0, 0, 36;

1, 0, 0, 0, 0, 0, 49;

...

CROSSREFS

Cf. A051731, A127733, A001157.

Sequence in context: A231350 A152420 A050465 * A095831 A277531 A284982

Adjacent sequences:  A134572 A134573 A134574 * A134576 A134577 A134578

KEYWORD

nonn,tabl

AUTHOR

Gary W. Adamson, Nov 02 2007

STATUS

approved

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

License Agreements, Terms of Use, Privacy Policy. .

Last modified October 18 05:26 EDT 2019. Contains 328146 sequences. (Running on oeis4.)