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!)
A234244 Number of (n+1) X (4+1) 0..7 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 2 (constant-stress 1 X 1 tilings). 1
790718, 23428586, 725628904, 22918035530, 726655747532, 23141164047392, 736603691141316, 23507963375000526, 749462059155365450, 23951460063621821168, 764584860814829968090, 24467051427944239943588 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..32

EXAMPLE

Some solutions for n=1:

2 4 6 0 3 4 2 2 0 5 2 0 2 6 6 0 2 5 3 2

2 2 6 2 3 6 2 4 0 7 4 4 4 6 4 0 4 5 5 6

CROSSREFS

Column 4 of A234245.

Sequence in context: A104949 A237895 A187295 * A255762 A255755 A254844

Adjacent sequences: A234241 A234242 A234243 * A234245 A234246 A234247

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 21 2013

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 March 28 22:41 EDT 2023. Contains 361596 sequences. (Running on oeis4.)