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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A240379 Number of nX4 0..3 arrays with no element equal to zero plus the sum of elements to its left or two plus the sum of elements above it or zero plus the sum of the elements diagonally to its northwest, modulo 4 1

%I

%S 4,90,1494,17550,281186,3502886,52375114,672652728,9771038498,

%T 127878632630,1824118827422,24208448126400,341050301141278,

%U 4570912937279916,63851040871974536,861645931638541286

%N Number of nX4 0..3 arrays with no element equal to zero plus the sum of elements to its left or two plus the sum of elements above it or zero plus the sum of the elements diagonally to its northwest, modulo 4

%C Column 4 of A240381

%H R. H. Hardin, <a href="/A240379/b240379.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=4

%e ..3..1..1..3....1..3..3..1....3..1..1..3....3..1..1..3....1..3..3..1

%e ..3..0..2..3....1..0..0..0....3..2..2..0....3..0..2..0....1..2..0..0

%e ..1..0..2..1....1..3..3..1....2..0..3..2....2..0..0..0....3..0..0..0

%e ..3..0..2..2....3..2..3..3....1..3..2..1....1..0..0..0....1..2..0..1

%K nonn

%O 1,1

%A _R. H. Hardin_, Apr 04 2014

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 May 24 09:41 EDT 2019. Contains 323529 sequences. (Running on oeis4.)