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A234887 Number of (n+1)X(5+1) 0..5 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
9192, 40856, 163352, 884976, 4318800, 26272908, 138216800, 902409352, 4907082840, 33616093680, 185936954632, 1318067732684, 7361429326200, 53481533152552, 300446060684776, 2221662510752072, 12526677175945288 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 5 of A234890

LINKS

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

EXAMPLE

Some solutions for n=3

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

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

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

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

CROSSREFS

Sequence in context: A250149 A243969 A231424 * A251902 A234139 A175743

Adjacent sequences:  A234884 A234885 A234886 * A234888 A234889 A234890

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 01 2014

STATUS

approved

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Last modified May 25 15:54 EDT 2022. Contains 354071 sequences. (Running on oeis4.)