A239187 Number of n X n 0..4 arrays with no element equal to the sum of elements to its left or the sum of the elements above it, modulo 5

4, 120, 43648, 151351888, 5513429365240, 2035912702049716008, 7729009194864231554969192, 300075821246252998677257219449376

Offset

1,1

Comments

Diagonal of A239194

Links

Table of n, a(n) for n=1..8.

Example

Some solutions for n=3
..2..1..2....4..2..4....1..2..1....1..4..4....2..1..4....4..1..4....3..2..4
..1..0..3....1..3..2....3..1..0....3..2..1....4..0..1....1..2..0....2..0..0
..1..2..4....1..4..2....2..4..4....3..4..4....2..0..3....1..0..2....3..4..3

Crossrefs

Sequence in context: A213957 A006607 A286757 * A062081 A053881 A075114

Adjacent sequences: A239184 A239185 A239186 * A239188 A239189 A239190

Keyword

nonn

Author

R. H. Hardin, Mar 11 2014

Status

approved