login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A156407 Number of 11 X 11 arrays of squares of integers, symmetric about the diagonal and under 90-degree rotation, with all rows summing to n. 0
1, 0, 0, 0, 112, 0, 0, 0, 80, 0, 0, 291, 1380, 0, 0, 0, 468, 0, 0, 868, 1680, 0, 0, 0, 3500, 0, 0, 4560, 1180, 0, 0, 0, 5030, 0, 0, 5603, 13884, 0, 0, 0, 16464, 0, 0, 10520, 28039, 0, 0, 0, 18060, 0, 0, 30480, 37500, 0, 0, 0, 37704, 0, 0, 38588, 16080, 0, 0, 0, 30068, 0, 0, 91760 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,5

LINKS

Table of n, a(n) for n=0..67.

CROSSREFS

Sequence in context: A259747 A261820 A262661 * A292155 A341011 A103849

Adjacent sequences:  A156404 A156405 A156406 * A156408 A156409 A156410

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 July 26 17:37 EDT 2021. Contains 346294 sequences. (Running on oeis4.)