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A238284 Number of (n+1)X(4+1) 0..3 arrays with no element greater than all horizontal neighbors or less than all vertical neighbors 1
144, 13948, 737366, 27913368, 1058583000, 44441926832, 1931022884277, 82508389421874, 3470891253761820, 145872518046542058, 6155861335428543193, 260232903353528638680, 10995149731230961462745, 464237140754455444786421 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A238287

LINKS

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

EXAMPLE

Some solutions for n=2

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

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

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

CROSSREFS

Sequence in context: A238932 A230969 A252779 * A249181 A352511 A260861

Adjacent sequences:  A238281 A238282 A238283 * A238285 A238286 A238287

KEYWORD

nonn

AUTHOR

R. H. Hardin, Feb 22 2014

STATUS

approved

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Last modified August 11 15:10 EDT 2022. Contains 356066 sequences. (Running on oeis4.)