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A240287 Number of 4Xn 0..3 arrays with no element equal to one 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 1
4, 38, 262, 3457, 28654, 443168, 3980245, 64782938, 596789376, 9869794598, 91652276224, 1523203607042, 14179800809674, 236017741338558, 2198821491143543, 36615754869208829, 341205510217305667 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 4 of A240284

LINKS

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

EXAMPLE

Some solutions for n=4

..3..3..1..3....3..1..3..3....3..1..3..3....3..1..3..1....3..1..3..1

..2..2..0..3....2..0..2..0....3..2..3..0....2..0..0..0....3..1..2..0

..2..0..2..2....2..0..0..2....2..2..2..2....2..0..2..0....3..1..2..1

..2..1..3..0....2..1..1..0....3..1..0..0....3..1..0..0....2..2..2..1

CROSSREFS

Sequence in context: A196851 A196702 A196945 * A092642 A020865 A240378

Adjacent sequences:  A240284 A240285 A240286 * A240288 A240289 A240290

KEYWORD

nonn

AUTHOR

R. H. Hardin, Apr 03 2014

STATUS

approved

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Last modified September 27 15:44 EDT 2021. Contains 347691 sequences. (Running on oeis4.)