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A238771 Number of nX4 0..3 arrays with no element equal to the sum modulo 4 of elements to its left or elements above it 1
32, 810, 22242, 604412, 16041854, 432845880, 11591229010, 311132395064, 8346793174230, 223952032043062, 6008329642035378, 161205690589879938, 4325039168486267828, 116040031314154634676, 3113310166409157643842 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A238775

LINKS

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

EXAMPLE

Some solutions for n=3

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

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

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

CROSSREFS

Sequence in context: A183215 A282396 A297099 * A181248 A139677 A231161

Adjacent sequences:  A238768 A238769 A238770 * A238772 A238773 A238774

KEYWORD

nonn

AUTHOR

R. H. Hardin, Mar 05 2014

STATUS

approved

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Last modified June 30 19:12 EDT 2022. Contains 354945 sequences. (Running on oeis4.)