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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A240762 Number of 3Xn 0..3 arrays with no element equal to one plus the sum of elements to its left or zero plus the sum of the elements above it or zero plus the sum of the elements diagonally to its northwest or zero plus the sum of the elements antidiagonally to its northeast, modulo 4 1
4, 12, 19, 142, 553, 4112, 18373, 131958, 625820, 4472258, 21760942, 154039075, 763999159, 5342021291, 26913960199, 185826785482, 949177894331, 6473768540990, 33478372193270, 225722723781992, 1180496482754391 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 3 of A240760

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..70

EXAMPLE

Some solutions for n=4

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

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

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

CROSSREFS

Sequence in context: A169583 A239727 A009557 * A050021 A239662 A321769

Adjacent sequences:  A240759 A240760 A240761 * A240763 A240764 A240765

KEYWORD

nonn

AUTHOR

R. H. Hardin, Apr 12 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 16 02:16 EDT 2019. Contains 327088 sequences. (Running on oeis4.)