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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A234488 Number of (n+1)X(6+1) 0..3 arrays with every 2X2 subblock having its diagonal sum differing from its antidiagonal sum by 2 (constant stress 1X1 tilings) 1
56312, 199340, 705072, 2505400, 8928348, 31925284, 114484712, 411823840, 1485448976, 5373690488, 19489761268, 70882202404, 258422403744, 944616682504, 3460926725184, 12711697164416, 46792887212012, 172654340693828 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 6 of A234490

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..84

EXAMPLE

Some solutions for n=2

..0..0..0..1..2..2..0....2..1..1..0..1..1..1....0..1..2..2..3..1..2

..3..1..3..2..1..3..3....2..3..1..2..1..3..1....1..0..3..1..0..0..3

..2..2..2..3..0..0..2....3..2..2..1..2..2..2....0..1..2..2..3..1..2

CROSSREFS

Sequence in context: A203964 A198165 A244294 * A184613 A202433 A190836

Adjacent sequences:  A234485 A234486 A234487 * A234489 A234490 A234491

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 26 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 | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified August 24 18:12 EDT 2019. Contains 326295 sequences. (Running on oeis4.)