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A235513 Number of (n+1)X(4+1) 0..1 arrays with the sum of each 2X2 subblock maximum and minimum lexicographically nondecreasing rowwise and columnwise 1
746, 16117, 343063, 7186597, 150092214, 3125826729, 65064307612, 1353709346996, 28162807605171, 585865208407308, 12187532238559827, 253530263035798053, 5274041168239019195, 109712641094198459037, 2282284675777630661147 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A235517

LINKS

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

EXAMPLE

Some solutions for n=2

..0..1..0..1..1....1..0..0..0..0....0..1..0..0..1....0..0..0..1..0

..0..0..1..0..0....1..1..0..1..0....1..0..0..1..0....0..1..0..0..0

..1..1..1..0..1....0..0..0..0..1....1..0..1..0..0....1..0..1..1..0

CROSSREFS

Sequence in context: A344014 A051978 A235732 * A252560 A252453 A252946

Adjacent sequences:  A235510 A235511 A235512 * A235514 A235515 A235516

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 11 2014

STATUS

approved

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Last modified January 23 17:33 EST 2022. Contains 350514 sequences. (Running on oeis4.)