A241286 Number of 4Xn 0..3 arrays with no element equal to one plus the sum of elements to its left or zero plus the sum of the elements above it or one plus the sum of the elements diagonally to its northwest or one plus the sum of the elements antidiagonally to its northeast, modulo 4.

24, 36, 236, 773, 1800, 16843, 54167, 159403, 1014287, 3055986, 10609732, 60969600, 191316011, 725713555, 3761999379, 12377676801, 48908645074, 236055743934, 808188094976, 3233355467890, 14810044876373, 52228582550562

Offset

1,1

Comments

Row 4 of A241283

Links

R. H. Hardin, Table of n, a(n) for n = 1..148

Example

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

Crossrefs

Sequence in context: A303884 A304616 A172424 * A380568 A334803 A070740

Adjacent sequences: A241283 A241284 A241285 * A241287 A241288 A241289

Keyword

nonn

Author

R. H. Hardin, Apr 18 2014

Status

approved