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!)
A235255 Number of (n+1) X (5+1) 0..7 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 7, with no adjacent elements equal (constant-stress tilted 1 X 1 tilings). 1
39680, 102000, 251656, 717452, 1951752, 5990204, 17480904, 56590772, 174061880, 586251132, 1878570184, 6520782212, 21592361736, 76732245020, 260994094488, 945046085492, 3286749223400, 12084946706892, 42822271489672 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 5 of A235258.

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..88

R. H. Hardin, Empirical recurrence of order 58

FORMULA

Empirical recurrence of order 58 (see link above).

EXAMPLE

Some solutions for n=2:

1 2 0 1 0 1 1 7 6 7 1 6 6 3 6 0 5 2 6 3 6 3 4 3

7 1 6 0 6 0 2 1 7 1 2 0 1 5 1 2 0 4 3 7 3 7 1 7

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

CROSSREFS

Sequence in context: A162866 A236132 A204311 * A234920 A116220 A103809

Adjacent sequences: A235252 A235253 A235254 * A235256 A235257 A235258

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 05 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 | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified March 27 05:46 EDT 2023. Contains 361554 sequences. (Running on oeis4.)