login
A239248
Number of n X n 0..4 arrays with no element equal to one plus the sum of elements to its left or one plus the sum of the elements above it, modulo 5
0
4, 142, 47066, 160787652, 5651220281864, 2031453416998054930, 7475436982938232742147042, 281737508349215799258494615824100
OFFSET
1,1
COMMENTS
Diagonal of A239256
EXAMPLE
Some solutions for n=3
..0..4..3....3..2..4....0..4..2....0..2..0....2..4..4....0..0..0....2..0..2
..0..3..3....0..4..4....0..2..1....0..4..3....2..1..2....3..2..3....2..4..4
..2..0..0....0..4..3....0..3..0....3..3..3....2..0..0....2..0..1....3..3..1
CROSSREFS
Sequence in context: A293752 A299833 A231949 * A225133 A122422 A307703
KEYWORD
nonn
AUTHOR
R. H. Hardin, Mar 13 2014
STATUS
approved