A239602 Number of 4Xn 0..3 arrays with no element equal to zero plus the sum of elements to its left or one 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

7, 4, 82, 643, 8773, 128347, 1991329, 31686730, 510551001, 8269184568, 134276229983, 2183190483244, 35519217176984, 578060604385531, 9409214132537899, 153168259416071355, 2493459020526521679

Offset

1,1

Comments

Row 4 of A239599

Links

R. H. Hardin, Table of n, a(n) for n = 1..27

Example

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

Crossrefs

Sequence in context: A270332 A038270 A241359 * A100976 A152627 A277067

Adjacent sequences: A239599 A239600 A239601 * A239603 A239604 A239605

Keyword

nonn

Author

R. H. Hardin, Mar 22 2014

Status

approved