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A238925 Number of (n+1)X(3+1) 0..3 arrays with no element greater than all horizontal neighbors or equal to all vertical neighbors 1
782, 13090, 611524, 22636472, 873385842, 33476445936, 1285018853980, 49292627209040, 1891392997403558, 72570437804912088, 2784363198852086944, 106832018867134432242, 4098974312510426370434, 157270670608326130217658 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 3 of A238929

LINKS

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

EXAMPLE

Some solutions for n=2

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

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

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

CROSSREFS

Sequence in context: A212947 A158398 A003914 * A045074 A204279 A158399

Adjacent sequences:  A238922 A238923 A238924 * A238926 A238927 A238928

KEYWORD

nonn

AUTHOR

R. H. Hardin, Mar 07 2014

STATUS

approved

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Last modified February 28 09:06 EST 2020. Contains 332323 sequences. (Running on oeis4.)