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!)
A240324 Number of nX4 0..3 arrays with no element equal to zero plus the sum of elements to its left or zero plus the sum of elements above it or one plus the sum of the elements diagonally to its northwest, modulo 4 1

%I #4 Apr 03 2014 22:23:39

%S 6,37,455,3374,21455,189549,1190246,8903613,70945972,460466581,

%T 3565876476,26437586127,180411185989,1394924206374,9999389423346,

%U 71022206087648,538759260350717,3826996325512698,27847080935840982

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

%C Column 4 of A240327

%H R. H. Hardin, <a href="/A240324/b240324.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=4

%e ..3..2..3..3....3..2..2..2....2..3..3..2....2..3..2..2....3..2..3..3

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Apr 03 2014

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 June 1 03:55 EDT 2023. Contains 363068 sequences. (Running on oeis4.)