A239990 Number of 6Xn 0..3 arrays with no element equal to zero plus the sum of elements to its left or two plus the sum of the elements above it or one plus the sum of the elements diagonally to its northwest, modulo 4

10, 84, 935, 9079, 83658, 652346, 4803152, 33097266, 216706121, 1349071998, 8021288399, 45621294425, 248975151409, 1305176292249, 6573063784889, 31800829162681, 147862529519971, 661287427073134, 2848137371338660

Offset

1,1

Comments

Row 6 of A239986

Links

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

R. H. Hardin, Empirical polynomial of degree 55

Formula

Empirical polynomial of degree 55 (see link above)

Example

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

Crossrefs

Sequence in context: A335647 A364416 A155593 * A321295 A350903 A318793

Adjacent sequences: A239987 A239988 A239989 * A239991 A239992 A239993

Keyword

nonn

Author

R. H. Hardin, Mar 30 2014

Status

approved