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A234892 Number of (n+1)X(2+1) 0..6 arrays with every 2X2 subblock having its diagonal sum differing from its antidiagonal sum by 1, with no adjacent elements equal (constant stress tilted 1X1 tilings) 1
760, 4024, 20404, 115924, 625480, 3640580, 19965444, 117487100, 648180128, 3842929120, 21274493964, 126918950864, 704449207500, 4225296177556, 23502462471760, 141626870060880, 789204770612276, 4774795329104980 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 2 of A234898

LINKS

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

R. H. Hardin, Empirical recurrence of order 51

FORMULA

Empirical recurrence of order 51 (see link above)

EXAMPLE

Some solutions for n=4

..2..1..4....3..6..3....1..2..0....4..5..4....1..0..3....0..3..2....1..0..2

..6..4..6....0..2..0....4..6..5....2..4..2....6..4..6....4..6..4....3..1..4

..3..2..3....3..6..5....0..3..1....5..6..3....1..0..1....1..4..1....5..4..6

..6..4..6....1..3..1....1..5..2....2..4..0....5..3..5....4..6..2....2..0..3

..1..0..3....4..5..4....3..6..4....5..6..1....6..5..6....2..5..0....4..1..5

CROSSREFS

Sequence in context: A014747 A258135 A247400 * A233879 A165629 A151633

Adjacent sequences:  A234889 A234890 A234891 * A234893 A234894 A234895

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 01 2014

STATUS

approved

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Last modified September 25 18:51 EDT 2021. Contains 347659 sequences. (Running on oeis4.)