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A234446 Number of (n+1)X(3+1) 0..4 arrays with every 2X2 subblock having its diagonal sum differing from its antidiagonal sum by 1 (constant stress 1X1 tilings) 1
8064, 125080, 2053280, 34601928, 588663528, 10079824144, 172781443608, 2969800840496, 51008286679168, 877838573526604, 15089751678627080, 259871199831030144, 4469550891727670024, 77017044139316320812 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 3 of A234450

LINKS

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

R. H. Hardin, Empirical recurrence of order 92

FORMULA

Empirical recurrence of order 92 (see link above)

EXAMPLE

Some solutions for n=2

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

..3..3..1..4....1..2..2..0....2..1..1..0....1..2..1..2....1..1..1..3

..2..1..0..4....0..2..3..0....2..2..3..1....0..0..0..2....3..2..1..4

CROSSREFS

Sequence in context: A109486 A032780 A159224 * A318104 A013378 A013458

Adjacent sequences:  A234443 A234444 A234445 * A234447 A234448 A234449

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 26 2013

STATUS

approved

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Last modified October 16 21:10 EDT 2019. Contains 328103 sequences. (Running on oeis4.)