A240384 Number of 4Xn 0..3 arrays with no element equal to zero plus the sum of elements to its left or two plus the sum of the elements above it or zero plus the sum of the elements diagonally to its northwest, modulo 4

22, 148, 2066, 17550, 279886, 2545618, 41758418, 386198428, 6402184552, 59522550860, 989951909274, 9219059734138, 153482631485554, 1430059273612710, 23815641376583332, 221934887827387424, 3696371174369294160

Offset

1,1

Comments

Row 4 of A240381

Links

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

Example

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

Crossrefs

Sequence in context: A223836 A224144 A225008 * A245380 A271635 A130438

Adjacent sequences: A240381 A240382 A240383 * A240385 A240386 A240387

Keyword

nonn

Author

R. H. Hardin, Apr 04 2014

Status

approved