login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A235104 Number of (n+1)X(5+1) 0..6 arrays with every 2X2 subblock having its diagonal sum differing from its antidiagonal sum by 4, with no adjacent elements equal (constant stress tilted 1X1 tilings) 1
54530, 135254, 345280, 937034, 2613410, 7614452, 22754394, 70442910, 223243440, 729220586, 2434648618, 8347808524, 29216007122, 104694635214, 382384146184, 1425884641650, 5409095808786, 20886702277500, 81856766900850 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 5 of A235107

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..80

EXAMPLE

Some solutions for n=2

..5..0..3..0..3..4....1..2..1..2..1..4....3..2..1..6..3..5....0..3..6..0..6..1

..3..2..1..2..1..6....3..0..3..0..3..2....6..1..4..5..6..4....5..4..3..1..3..2

..5..0..3..0..3..4....5..6..5..6..5..0....3..2..1..6..3..5....2..5..0..2..0..3

CROSSREFS

Sequence in context: A203624 A250857 A083616 * A205997 A091536 A237732

Adjacent sequences:  A235101 A235102 A235103 * A235105 A235106 A235107

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 03 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 September 22 02:38 EDT 2021. Contains 347605 sequences. (Running on oeis4.)