A240004 Number of 5Xn 0..3 arrays with no element equal to one 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

66, 1117, 10405, 86360, 635873, 4267171, 26152051, 147439332, 775122753, 3821059149, 17769229031, 78356711183, 328981383567, 1319877073978, 5076715532082, 18776009861766, 66950026301586, 230700526217982

Offset

1,1

Comments

Row 5 of A240000

Links

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

R. H. Hardin, Empirical polynomial of degree 44

Formula

Empirical polynomial of degree 44 (see link above)

Example

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

Crossrefs

Sequence in context: A196789 A284283 A168123 * A231287 A263522 A269693

Adjacent sequences: A240001 A240002 A240003 * A240005 A240006 A240007

Keyword

nonn

Author

R. H. Hardin, Mar 30 2014

Status

approved