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!)
A146555 Number of n X n arrays of squares of integers summing to 40 with every element equal to at least one neighbor. 1
4, 128, 120672, 102504963, 209207867680 (list; graph; refs; listen; history; text; internal format)
OFFSET
2,1
LINKS
Table of n, a(n) for n=2..6.
CROSSREFS
Sequence in context: A229385 A141367 A141368 * A305568 A057134 A041495
Adjacent sequences: A146552 A146553 A146554 * A146556 A146557 A146558
KEYWORD
nonn
AUTHOR
R. H. Hardin Apr 14 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 5 16:08 EDT 2024. Contains 373107 sequences. (Running on oeis4.)