A240335 Number of nX4 0..3 arrays with no element equal to two plus the sum of elements to its left or two plus the sum of elements above it or one plus the sum of the elements diagonally to its northwest, modulo 4

11, 125, 1543, 14456, 110327, 716770, 4106515, 21225132, 100450928, 439636230, 1794450993, 6877191513, 24890635414, 85487063870, 279762732186, 875466952987, 2627798748965, 7586416486816, 21117565954821, 56805212100627

Offset

1,1

Comments

Column 4 of A240338

Links

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

R. H. Hardin, Empirical polynomial of degree 30

Formula

Empirical polynomial of degree 30 (see link above)

Example

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

Crossrefs

Sequence in context: A242523 A015596 A163310 * A076483 A209901 A285056

Adjacent sequences: A240332 A240333 A240334 * A240336 A240337 A240338

Keyword

nonn

Author

R. H. Hardin, Apr 04 2014

Status

approved