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A235829 Number of (n+1)X(2+1) 0..2 arrays with the difference of the upper median and minimum value of each 2X2 subblock in lexicographically nondecreasing order columnwise and nonincreasing rowwise 1
549, 8160, 110923, 1378463, 16385455, 187651928, 2100282123, 23113626964, 251566008413, 2717152701688, 29200663712707, 312765530573453, 3342753914724018, 35676421518532748, 380426763089559131 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 2 of A235833

LINKS

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

R. H. Hardin, Empirical recurrence of order 84

FORMULA

Empirical recurrence of order 84 (see link above)

EXAMPLE

Some solutions for n=3

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

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

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

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

CROSSREFS

Sequence in context: A249297 A245957 A206506 * A235834 A235585 A210399

Adjacent sequences:  A235826 A235827 A235828 * A235830 A235831 A235832

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 16 2014

STATUS

approved

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Last modified May 22 05:03 EDT 2019. Contains 323473 sequences. (Running on oeis4.)