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A235190 Number of (n+1) X (n+1) 0..6 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 5, with no adjacent elements equal (constant-stress tilted 1 X 1 tilings). 0
136, 1544, 12176, 96848, 652872, 4812096, 31498952, 224694240, 1462784688, 10244417184 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..10.

EXAMPLE

Some solutions for n=4:

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

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

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

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

  2 5 6 5 6     2 4 1 3 1     6 2 4 3 4     4 3 4 1 5

CROSSREFS

Diagonal of A235198.

Sequence in context: A251168 A023070 A015163 * A249985 A072897 A254703

Adjacent sequences:  A235187 A235188 A235189 * A235191 A235192 A235193

KEYWORD

nonn,more,changed

AUTHOR

R. H. Hardin, Jan 04 2014

STATUS

approved

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Last modified June 28 19:10 EDT 2022. Contains 354907 sequences. (Running on oeis4.)