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!)
A234164 Number of (n+1)X(3+1) 0..4 arrays with every 2X2 subblock having its diagonal sum differing from its antidiagonal sum by 2 (constant stress 1X1 tilings) 1
4296, 32070, 236876, 1773484, 13227132, 99877680, 751361300, 5729616704, 43493374260, 335194819624, 2568518101508, 20015511073672, 154853905277996, 1220427512643784, 9532590261966940, 75975862900079592, 598936631627547644 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 3 of A234169

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

R. H. Hardin, Empirical recurrence of order 80

FORMULA

Empirical recurrence of order 80 (see link above)

EXAMPLE

Some solutions for n=2

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

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

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

CROSSREFS

Sequence in context: A204401 A204400 A271104 * A124596 A224522 A210263

Adjacent sequences:  A234161 A234162 A234163 * A234165 A234166 A234167

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 20 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 October 21 06:53 EDT 2021. Contains 348143 sequences. (Running on oeis4.)