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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A146203 Number of n X n arrays of squares of integers with every (n-2)X(n-2) subblock summing to 7 and every element equal to at least one neighbor. 1
0, 18, 79648, 1568158, 9251144, 34765154, 101461384, 250731864, 549801520, 1100971428, 2052324440, 3609891704, 6051280064 (list; graph; refs; listen; history; text; internal format)
OFFSET

4,2

LINKS

Table of n, a(n) for n=4..16.

CROSSREFS

Sequence in context: A159445 A146548 A051591 * A192081 A290177 A259364

Adjacent sequences:  A146200 A146201 A146202 * A146204 A146205 A146206

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 August 20 01:14 EDT 2019. Contains 326136 sequences. (Running on oeis4.)