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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A239861 Number of 4Xn 0..3 arrays with no element equal to zero plus the sum of elements to its left or zero plus the sum of the elements above it or one plus the sum of the elements diagonally to its northwest or one plus the sum of the elements antidiagonally to its northeast, modulo 4 1
6, 4, 84, 203, 1114, 3463, 9963, 71695, 219708, 889871, 4682227, 14101348, 56490669, 272270300, 908846318, 3737847138, 17250775307, 59577644920, 244962530289, 1088932223860, 3891762853661, 15991497390003, 68807314247286 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 4 of A239858

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..151

EXAMPLE

Some solutions for n=4

..3..2..2..2....2..3..3..3....2..3..2..2....3..2..3..2....3..2..3..2

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

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

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

CROSSREFS

Sequence in context: A112521 A192350 A308900 * A266850 A109873 A014403

Adjacent sequences:  A239858 A239859 A239860 * A239862 A239863 A239864

KEYWORD

nonn

AUTHOR

R. H. Hardin, Mar 28 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 November 21 12:28 EST 2019. Contains 329370 sequences. (Running on oeis4.)