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!)
A234997 Number of (n+1)X(6+1) 0..6 arrays with every 2X2 subblock having its diagonal sum differing from its antidiagonal sum by 2, with no adjacent elements equal (constant stress tilted 1X1 tilings) 1
1214044, 12776172, 147975544, 2489486392, 44177186020, 914013128196, 19044109453960, 424531682715560, 9414229379699100, 217307773793647632, 4988732357928242872, 117937872645602844912, 2779027403640520958532 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 6 of A234998

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..15

EXAMPLE

Some solutions for n=1

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

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

CROSSREFS

Sequence in context: A092696 A203627 A235910 * A213703 A270268 A257152

Adjacent sequences:  A234994 A234995 A234996 * A234998 A234999 A235000

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 02 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 January 21 17:44 EST 2022. Contains 350479 sequences. (Running on oeis4.)