The OEIS mourns the passing of Jim Simons and is grateful to the Simons Foundation for its support of research in many branches of science, including the OEIS.
login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A159358 Number of n X n arrays of squares of integers with every (n-3)X(n-3) subblock summing to 4 1
21, 10863, 485580, 5524819, 34063605, 147025901, 501203288, 1443386025, 3661046269, 8408644815, 17831404296, 35411163363, 66561697945, 119403667269, 205752113900, 342352218641, 552401782713, 867401681215, 1329378303444 (list; graph; refs; listen; history; text; internal format)
OFFSET
5,1
LINKS
CROSSREFS
Sequence in context: A176446 A135823 A013726 * A048914 A046183 A203674
KEYWORD
nonn
AUTHOR
R. H. Hardin Apr 11 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 | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified June 18 03:29 EDT 2024. Contains 373468 sequences. (Running on oeis4.)