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A235207 Number of (n+1)X(3+1) 0..7 arrays with every 2X2 subblock having its diagonal sum differing from its antidiagonal sum by 5, with no adjacent elements equal (constant stress tilted 1X1 tilings) 1
5696, 18444, 61160, 215996, 781040, 2971196, 11553392, 46833260, 193465560, 826218532, 3581539136, 15932122292, 71644936160, 328631733908, 1518363127144, 7123179412380, 33563057736176, 160050497011676, 764880136880880 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 3 of A235212

LINKS

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

R. H. Hardin, Empirical recurrence of order 62

FORMULA

Empirical recurrence of order 62 (see link above)

EXAMPLE

Some solutions for n=3

..4..2..0..2....3..2..3..2....6..0..7..0....5..4..3..0....2..6..3..5

..1..4..7..4....7..1..7..1....4..3..5..3....3..7..1..3....6..5..7..4

..4..2..0..2....1..0..1..0....0..4..1..4....7..6..5..2....0..4..1..3

..1..4..7..4....3..7..3..7....3..2..4..2....3..7..1..3....2..1..3..0

CROSSREFS

Sequence in context: A269297 A269344 A184147 * A252342 A237743 A025027

Adjacent sequences:  A235204 A235205 A235206 * A235208 A235209 A235210

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 04 2014

STATUS

approved

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Last modified May 31 07:03 EDT 2020. Contains 334747 sequences. (Running on oeis4.)