A240762 Number of 3Xn 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 zero plus the sum of the elements diagonally to its northwest or zero plus the sum of the elements antidiagonally to its northeast, modulo 4

4, 12, 19, 142, 553, 4112, 18373, 131958, 625820, 4472258, 21760942, 154039075, 763999159, 5342021291, 26913960199, 185826785482, 949177894331, 6473768540990, 33478372193270, 225722723781992, 1180496482754391

Offset

1,1

Comments

Row 3 of A240760

Links

R. H. Hardin, Table of n, a(n) for n = 1..70

Example

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

Crossrefs

Sequence in context: A239727 A341888 A009557 * A319259 A050021 A239662

Adjacent sequences: A240759 A240760 A240761 * A240763 A240764 A240765

Keyword

nonn

Author

R. H. Hardin, Apr 12 2014

Status

approved