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!)
A241394 Number of n X 4 0..3 arrays with no element equal to zero plus the sum of elements to its left or one plus the sum of elements above it or zero 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, 23, 85, 480, 2780, 17211, 102782, 645484, 3936420, 24633252, 150911826, 941907715, 5783836527, 36025719987, 221566632164, 1377925800191, 8486654284672, 52714390850462, 324976079474744, 2016735929148039, 12443708121368662, 77167572875652387, 476406669588897579 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
EXAMPLE
Some solutions for n=4:
..2..3..3..3....3..2..2..2....2..3..3..2....2..3..3..2....2..3..3..2
..1..3..1..2....1..2..0..0....1..3..2..0....2..1..2..2....1..3..2..0
..1..0..0..3....3..0..0..0....1..0..0..0....3..0..1..2....1..2..0..2
..3..2..2..2....1..2..2..0....3..2..0..2....3..2..0..2....2..3..0..3
CROSSREFS
Column 4 of A241397.
Sequence in context: A027043 A006815 A264690 * A054491 A282710 A295132
KEYWORD
nonn
AUTHOR
_R. H. Hardin_, Apr 20 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 | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified March 4 23:31 EST 2024. Contains 370537 sequences. (Running on oeis4.)