A241434 Number of nX7 0..3 arrays with no element equal to one 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

24, 181, 1272, 22712, 282527, 4122537, 79901137, 1231102996, 26880310825, 446955799466

Offset

1,1

Comments

Column 7 of A241435

Links

Table of n, a(n) for n=1..10.

Example

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

Crossrefs

Sequence in context: A073993 A214310 A052758 * A143040 A305166 A128960

Adjacent sequences: A241431 A241432 A241433 * A241435 A241436 A241437

Keyword

nonn

Author

R. H. Hardin, Apr 22 2014

Status

approved