A240361 Number of nX4 0..3 arrays with no element equal to one plus the sum of elements to its left or two plus the sum of elements above it or two plus the sum of the elements diagonally to its northwest, modulo 4

16, 188, 1693, 13846, 99412, 663122, 4069449, 23273667, 125118158, 638885869, 3112031883, 14542135543, 65459603510, 284932363144, 1202883300068, 4937067745039, 19738795196797, 76995496434084, 293404872610496

Offset

1,1

Comments

Column 4 of A240364

Links

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

R. H. Hardin, Empirical polynomial of degree 80

Formula

Empirical polynomial of degree 80 (see link above)

Example

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

Crossrefs

Sequence in context: A021049 A067308 A016244 * A016292 A231834 A181277

Adjacent sequences: A240358 A240359 A240360 * A240362 A240363 A240364

Keyword

nonn

Author

R. H. Hardin, Apr 04 2014

Status

approved