A234671 - OEIS

A234671

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

1778412, 12470688, 87273500, 612823800, 4310166424, 30383174872, 214543149212, 1518177199612, 10760923462440, 76431308293764, 543736436534596, 3875894712574776

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OFFSET

1,1

LINKS

Table of n, a(n) for n=1..12.

EXAMPLE

Some solutions for n=1:

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

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

CROSSREFS

Column 5 of A234672.

Sequence in context: A017286 A017394 A017658 * A043650 A234082 A140861

Adjacent sequences: A234668 A234669 A234670 * A234672 A234673 A234674

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 29 2013

STATUS

approved