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A237400 Number of (n+1) X (2+1) 0..3 arrays with the maximum plus the upper median plus the lower median minus the minimum of every 2 X 2 subblock differing from its horizontal and vertical neighbors by exactly one. 1
1540, 13924, 126848, 1200450, 11356368, 107575258, 1019532240, 9677144372, 91828244608, 870656179420, 8257010060008, 78380260564790, 743849267283708, 7052992728980384, 66890881275269768, 634973419568809332 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 2 of A237403.

LINKS

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

EXAMPLE

Some solutions for n=3

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

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

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

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

CROSSREFS

Sequence in context: A133354 A283900 A104167 * A200429 A092717 A203134

Adjacent sequences:  A237397 A237398 A237399 * A237401 A237402 A237403

KEYWORD

nonn

AUTHOR

R. H. Hardin, Feb 07 2014

STATUS

approved

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Last modified May 26 04:43 EDT 2022. Contains 354074 sequences. (Running on oeis4.)