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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A252200 Number of (n+2)X(7+2) 0..3 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum not equal to 0 3 5 6 or 7 1
10074, 23265, 206825, 1669356, 13460703, 110131575, 896763106, 7301549086, 59570598688, 485457428350, 3954090473125, 32222610105553, 262627685087281, 2140187356615136, 17439608164244823, 142114394703257807 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A252201

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

EXAMPLE

Some solutions for n=2

..3..2..3..3..3..3..2..3..3....3..2..3..3..3..2..3..3..3

..2..3..3..3..3..3..3..3..3....3..3..3..2..3..3..3..3..3

..3..3..3..3..3..3..3..3..3....2..3..3..3..3..3..3..3..3

..3..3..3..3..3..3..2..3..3....3..3..3..3..2..3..3..3..3

CROSSREFS

Sequence in context: A023356 A292176 A198484 * A234773 A203865 A145836

Adjacent sequences:  A252197 A252198 A252199 * A252201 A252202 A252203

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 15 2014

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 April 22 22:16 EDT 2019. Contains 322378 sequences. (Running on oeis4.)