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A238932 Number of (3+1)X(n+1) 0..3 arrays with no element greater than all horizontal neighbors or equal to all vertical neighbors 1
144, 13456, 611524, 25080064, 1176627204, 56843142724, 2709454265764, 128279816340624, 6079146560329924, 288422073077743396, 13684604007820147600, 649179381582973359556, 30795222312008784568324 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 3 of A238929

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..143

EXAMPLE

Some solutions for n=2

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

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

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

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

CROSSREFS

Sequence in context: A199406 A182913 A231697 * A230969 A252779 A238284

Adjacent sequences:  A238929 A238930 A238931 * A238933 A238934 A238935

KEYWORD

nonn

AUTHOR

R. H. Hardin, Mar 07 2014

STATUS

approved

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Last modified July 5 15:05 EDT 2022. Contains 355099 sequences. (Running on oeis4.)