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!)
A240281 Number of nX4 0..3 arrays with no element equal to one 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
4, 76, 570, 3457, 33183, 218658, 1851080, 15760838, 110599613, 945852472, 7409236730, 55988117579, 467427537182, 3584402597875, 28182066532013, 228525081390122, 1759513489969607, 14047642078491638, 111675119083235178 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A240284

LINKS

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

EXAMPLE

Some solutions for n=4

..3..1..3..1....3..3..1..1....3..1..3..3....3..1..3..1....3..1..3..1

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

..2..0..0..2....2..0..2..2....2..0..0..2....2..0..0..0....2..0..2..2

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

CROSSREFS

Sequence in context: A094160 A045996 A190395 * A114453 A093184 A214814

Adjacent sequences:  A240278 A240279 A240280 * A240282 A240283 A240284

KEYWORD

nonn

AUTHOR

R. H. Hardin, Apr 03 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 September 21 10:45 EDT 2020. Contains 337268 sequences. (Running on oeis4.)