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A236078 Number of (n+1)X(2+1) 0..2 arrays with the sum of each 2X2 subblock maximum and minimum lexicographically nondecreasing rowwise and columnwise 1
576, 9979, 169680, 2634205, 40097396, 587963980, 8523145663, 121700475056, 1728432778182, 24403460015028, 343787025890344, 4832490504998260, 67872153417285885, 952512927560219600, 13363621591424552478 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 2 of A236082

LINKS

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

R. H. Hardin, Empirical recurrence of order 82

FORMULA

Empirical recurrence of order 82 (see link above)

EXAMPLE

Some solutions for n=3

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

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

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

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

CROSSREFS

Sequence in context: A269034 A188787 A235738 * A264524 A209781 A330840

Adjacent sequences:  A236075 A236076 A236077 * A236079 A236080 A236081

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 19 2014

STATUS

approved

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Last modified July 8 01:48 EDT 2020. Contains 335502 sequences. (Running on oeis4.)