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A234165 Number of (n+1) X (4+1) 0..4 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 2 (constant-stress 1 X 1 tilings). 1
24158, 208412, 1773484, 15427948, 133660366, 1183467658, 10438586426, 94449496104, 849993735464, 7882971512792, 72513701669622, 690714087534706, 6499304028679962, 63623536362231308, 612011883415592408 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

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

EXAMPLE

Some solutions for n=1:

4 1 4 1 2 2 4 4 4 4 1 4 2 3 2 1 0 1 2 3

2 1 2 1 0 2 2 0 2 0 3 4 0 3 4 0 1 0 3 2

CROSSREFS

Column 4 of A234169.

Sequence in context: A249843 A110405 A234112 * A321063 A309018 A253465

Adjacent sequences: A234162 A234163 A234164 * A234166 A234167 A234168

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 20 2013

STATUS

approved

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Last modified March 30 09:39 EDT 2023. Contains 361609 sequences. (Running on oeis4.)