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A236274 Number of (n+1)X(4+1) 0..2 arrays with the upper median unequal to the lower median in every 2X2 subblock 1
5328, 137142, 3604782, 98027150, 2691633954, 74525190422, 2069437793694, 57582849812178, 1603546636521534, 44677821271613598, 1245075012786694322, 34702027677942876454, 967250238298071442758, 26961060977602280871738 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A236278

LINKS

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

R. H. Hardin, Empirical recurrence of order 65

FORMULA

Empirical recurrence of order 65 (see link above)

EXAMPLE

Some solutions for n=2

..2..0..1..0..2....0..1..1..0..1....0..2..1..0..1....0..1..1..0..2

..1..0..2..0..1....2..2..2..0..2....2..1..2..2..0....0..2..2..0..1

..2..0..2..0..2....0..0..1..0..2....1..2..1..0..2....2..1..0..1..0

CROSSREFS

Sequence in context: A252199 A317917 A187853 * A278895 A317918 A031571

Adjacent sequences:  A236271 A236272 A236273 * A236275 A236276 A236277

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 21 2014

STATUS

approved

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Last modified September 27 04:10 EDT 2021. Contains 347673 sequences. (Running on oeis4.)