A240050 Number of 5Xn 0..3 arrays with no element equal to zero plus the sum of elements to its left or zero plus the sum of the 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

8, 50, 309, 1496, 7514, 55034, 236282, 1248277, 6431987, 29170979, 155931126, 801190472, 4068998418, 19619747500, 103973075128, 508889855031, 2476317886402, 12705627199443, 63280997191424, 313215400063102

Offset

1,1

Comments

Row 5 of A240046

Links

R. H. Hardin, Table of n, a(n) for n = 1..23

Example

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

Crossrefs

Sequence in context: A243876 A037547 A061801 * A221478 A287812 A180029

Adjacent sequences: A240047 A240048 A240049 * A240051 A240052 A240053

Keyword

nonn

Author

R. H. Hardin, Mar 31 2014

Status

approved