login
The OEIS is supported by the many generous donors to the OEIS 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 59th year, we have over 358,000 sequences, and we’ve crossed 10,300 citations (which often say “discovered thanks to the OEIS”).

Other ways to Give
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A159206 Number of n X n arrays of squares of integers with every 3X3 subblock summing to 6 0
336, 2060, 7528, 19812, 70576, 197564, 465096, 1460108, 3888976, 9235668, 27944512, 75309548, 188132376, 564873500, 1569781408, 4155445092 (list; graph; refs; listen; history; text; internal format)
OFFSET

3,1

LINKS

Table of n, a(n) for n=3..18.

CROSSREFS

Sequence in context: A348343 A237862 A268807 * A251066 A269050 A184557

Adjacent sequences: A159203 A159204 A159205 * A159207 A159208 A159209

KEYWORD

nonn

AUTHOR

R. H. Hardin Apr 06 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 December 8 03:48 EST 2022. Contains 358672 sequences. (Running on oeis4.)