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

 

Logo

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 56th year, we are closing in on 350,000 sequences, and we’ve crossed 9,700 citations (which often say “discovered thanks to the OEIS”).

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A146522 Number of n X n arrays of squares of integers summing to 28 with every element equal to at least one neighbor. 2
0, 132, 31837, 22671402, 12853769226 (list; graph; refs; listen; history; text; internal format)
OFFSET

2,2

LINKS

Table of n, a(n) for n=2..6.

CROSSREFS

Sequence in context: A216787 A239817 A175410 * A183500 A146545 A181194

Adjacent sequences:  A146519 A146520 A146521 * A146523 A146524 A146525

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 | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified December 8 20:34 EST 2021. Contains 349596 sequences. (Running on oeis4.)