|
|
|
|
| A193810
|
|
Number of n X n symmetric 0..5 arrays with no element equal to the difference mod 6 of any two of its horizontal and vertical neighbors.
(history;
published version)
|
|
|
|
|
#8 by Bruno Berselli at Fri Nov 21 03:55:35 EST 2014
|
|
|
|
|
|
|
|
#7 by Michel Marcus at Thu Nov 20 23:43:49 EST 2014
|
|
|
|
|
|
|
|
#6 by Wesley Ivan Hurt at Thu Nov 20 22:18:43 EST 2014
|
|
|
|
|
|
|
|
#5 by Wesley Ivan Hurt at Thu Nov 20 22:18:40 EST 2014
|
|
| NAME
|
Number of n X nXnn symmetric 0..5 arrays with no element equal to the difference mod 6 of any two of its horizontal and vertical neighbors.
|
|
| EXAMPLE
|
Some solutions for 4 X 4X44:
|
|
| AUTHOR
|
_R. H. Hardin_ _, Aug 05 2011
|
|
| STATUS
|
approved
editing
|
|
|
|
|
|
|
#4 by Russ Cox at Sat Mar 31 12:36:21 EDT 2012
|
|
| AUTHOR
|
_R. H. Hardin (rhhardin(AT)att.net) _ Aug 05 2011
|
|
|
|
|
Discussion
|
| Sat Mar 31
| 12:36
| OEIS Server: https://oeis.org/edit/global/875
|
|
|
|
|
|
|
#3 by Ron Hardin at Fri Aug 05 18:46:46 EDT 2011
|
|
|
|
|
|
|
|
#2 by Ron Hardin at Fri Aug 05 18:46:40 EDT 2011
|
|
| NAME
|
allocatedNumber of nXn symmetric 0..5 arrays with no element equal to the difference mod 6 of any two of its horizontal forand Ronvertical Hardinneighbors
|
|
| DATA
|
6, 109, 2785, 160273, 31474553, 21334488089, 46140355278097, 306619332905168069, 6168636777847547479765
|
|
| OFFSET
|
1,1
|
|
| EXAMPLE
|
Some solutions for 4X4
..5..0..2..1....2..3..4..2....3..3..2..2....5..0..3..1....1..3..0..1
..0..4..1..2....3..4..3..3....3..1..3..3....0..2..0..0....3..1..0..3
..2..1..2..2....4..3..4..2....2..3..3..4....3..0..1..3....0..0..4..0
..1..2..2..3....2..3..2..3....2..3..4..2....1..0..3..5....1..3..0..1
|
|
| KEYWORD
|
allocated
nonn
|
|
| AUTHOR
|
R. H. Hardin (rhhardin(AT)att.net) Aug 05 2011
|
|
| STATUS
|
approved
editing
|
|
|
|
|
|
|
#1 by Ron Hardin at Fri Aug 05 18:44:09 EDT 2011
|
|
| NAME
|
allocated for Ron Hardin
|
|
| KEYWORD
|
allocated
|
|
| STATUS
|
approved
|
|
|
|
|
|
