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A235977 Number of (n+1)X(4+1) 0..2 arrays with the upper median equal to the lower median in every 2X2 subblock 1
3741, 89555, 1947197, 46727365, 1101519021, 26513929449, 636000634655, 15322368309233, 368889441554023, 8889119296332995, 214171250506380939, 5161137430892686227, 124370527249999193137, 2997137255815847180323 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A235981

LINKS

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

R. H. Hardin, Empirical recurrence of order 61

FORMULA

Empirical recurrence of order 61 (see link above)

EXAMPLE

Some solutions for n=2

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

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

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

CROSSREFS

Sequence in context: A038012 A020410 A166262 * A235243 A180974 A285158

Adjacent sequences:  A235974 A235975 A235976 * A235978 A235979 A235980

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 17 2014

STATUS

approved

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Last modified May 20 02:50 EDT 2019. Contains 323412 sequences. (Running on oeis4.)