A240409 Number of nX4 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, modulo 4

6, 80, 846, 11670, 148536, 2051450, 27295809, 377924479, 5090700587, 70407569019, 954551839061, 13174232753505, 179288052424091, 2469879998025684, 33692295233425277, 463482286724987999, 6332258123206034509

Offset

1,1

Comments

Column 4 of A240412

Links

R. H. Hardin, Table of n, a(n) for n = 1..210

Example

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

Crossrefs

Sequence in context: A248530 A229574 A381646 * A275137 A167570 A337564

Adjacent sequences: A240406 A240407 A240408 * A240410 A240411 A240412

Keyword

nonn

Author

R. H. Hardin, Apr 04 2014

Status

approved