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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A156422 Number of 16X16 arrays of squares of integers, symmetric under 90 degree rotation, with all rows summing to n. 0
1, 1680, 1756860, 449345680, 33899743010, 896812758240, 10075020851140, 65214945341280, 366766557522330, 2033591738777760, 9808527088125024, 42048089482202384 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..11.

CROSSREFS

Sequence in context: A234439 A060095 A282402 * A172562 A172568 A172673

Adjacent sequences:  A156419 A156420 A156421 * A156423 A156424 A156425

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 09 2009

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 April 26 09:03 EDT 2019. Contains 322472 sequences. (Running on oeis4.)