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A239821
Number of 3Xn 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, modulo 4.
1
11, 113, 1480, 18728, 232272, 2912793, 36627126, 459870638, 5774508494, 72538478424, 911227478673, 11446501405086, 143789611879946, 1806288798172920, 22690641341877163, 285040443527806965
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OFFSET
1,1
COMMENTS
Row 3 of
A239819
LINKS
R. H. Hardin,
Table of n, a(n) for n = 1..210
R. H. Hardin,
Empirical recurrence of order 64
FORMULA
Empirical recurrence of order 64 (see link above)
EXAMPLE
Some solutions for n=4
..2..0..0..3....3..2..2..0....2..0..0..0....3..2..0..0....3..2..3..2
..1..2..0..1....2..0..0..0....1..3..2..0....1..0..0..0....3..2..2..0
..3..1..3..0....3..1..1..2....2..3..2..2....3..2..3..2....1..3..3..1
CROSSREFS
Sequence in context:
A287837
A276200
A104096
*
A087391
A211200
A048553
Adjacent sequences:
A239818
A239819
A239820
*
A239822
A239823
A239824
KEYWORD
nonn
AUTHOR
R. H. Hardin
, Mar 27 2014
STATUS
approved
