A234700 Number of (n+1) X (4+1) 0..7 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 5 (constant-stress 1 X 1 tilings).

109224, 409268, 1558600, 6480632, 27355272, 123900992, 568426072, 2764737872, 13583184744, 70136986928, 364777574680, 1981002042032, 10806653515752, 61248831406832, 347803143332632, 2043819621246512, 12004006148560104

Offset

1,1

Links

R. H. Hardin, Table of n, a(n) for n = 1..52

Example

Some solutions for n=1:
  6 0 5 2 4      2 2 1 6 2      5 2 4 3 3      5 5 6 0 1
  2 1 1 3 0      5 0 4 4 5      4 6 3 7 2      5 0 6 5 1

Crossrefs

Column 4 of A234702.

Sequence in context: A210083 A238044 A237963 * A238061 A111888 A183770

Adjacent sequences: A234697 A234698 A234699 * A234701 A234702 A234703

Keyword

nonn

Author

R. H. Hardin, Dec 29 2013

Status

approved