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A234493 Number of (n+1)X(3+1) 0..5 arrays with every 2X2 subblock having its diagonal sum differing from its antidiagonal sum by 2 (constant stress 1X1 tilings) 1
13464, 158288, 1856768, 22124316, 260915944, 3122368992, 36940569778, 443886085700, 5267872223782, 63565110955752, 756696012118752, 9169781418833544, 109495524770067884, 1332679274592188150 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 3 of A234497

LINKS

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

EXAMPLE

Some solutions for n=2

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

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

..2..5..1..5....1..4..1..5....2..2..3..1....4..3..2..3....4..2..2..2

CROSSREFS

Sequence in context: A284952 A250616 A115925 * A029557 A115922 A248444

Adjacent sequences:  A234490 A234491 A234492 * A234494 A234495 A234496

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 26 2013

STATUS

approved

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Last modified September 20 12:29 EDT 2019. Contains 327231 sequences. (Running on oeis4.)