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A203061 Number of nX3 0..6 arrays with every nonzero element less than or equal to some horizontal or vertical neighbor 1
49, 16625, 3421817, 608893191, 111898706731, 20929382959987, 3898031053158067, 724530008223344653, 134743665957095646765, 25064589517883536625961, 4662096688032488638076973, 867142733431123407591563935 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 3 of A203066

LINKS

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

EXAMPLE

Some solutions for n=5

..0..3..1....2..0..5....0..0..4....4..2..4....3..0..2....0..3..0....2..5..1

..1..5..1....6..5..6....2..4..4....4..6..4....3..0..2....4..4..3....0..5..6

..4..5..2....6..4..6....0..4..2....6..6..5....3..4..6....6..6..2....2..4..6

..2..6..5....1..6..1....5..1..1....1..5..2....2..4..6....4..3..4....6..1..4

..6..6..1....3..6..3....5..2..0....6..6..6....4..4..5....0..3..4....6..6..1

CROSSREFS

Sequence in context: A222459 A145251 A202991 * A013741 A178190 A319941

Adjacent sequences: A203058 A203059 A203060 * A203062 A203063 A203064

KEYWORD

nonn

AUTHOR

R. H. Hardin Dec 28 2011

STATUS

approved

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Last modified November 28 21:06 EST 2022. Contains 358421 sequences. (Running on oeis4.)