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A237339 Number of (n+1)X(7+1) 0..3 arrays with the maximum minus the minimum of every 2X2 subblock equal 1
65088736, 187274820848, 350887832861914, 853258883465178716, 1940048094720442708424, 4589674696042691458666978, 10758204870901373957540392092, 25363912957162938683065723419548 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A237340

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..17

EXAMPLE

Some solutions for n=1

..0..0..1..0..0..2..1..0....0..0..1..0..2..1..1..0....0..0..0..1..2..2..3..1

..0..2..1..2..1..0..1..2....0..2..1..2..0..2..0..2....0..2..1..2..3..1..3..1

CROSSREFS

Sequence in context: A164726 A237157 A183671 * A224589 A224590 A224597

Adjacent sequences:  A237336 A237337 A237338 * A237340 A237341 A237342

KEYWORD

nonn

AUTHOR

R. H. Hardin, Feb 06 2014

STATUS

approved

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Last modified September 22 10:36 EDT 2021. Contains 347606 sequences. (Running on oeis4.)