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A208783 Number of nX3 nonnegative integer arrays with new values 0 upwards introduced in row major order and no element equal to any antidiagonal neighbor (colorings ignoring permutations of colors) 1
5, 114, 9089, 1515903, 435411946, 193010377345, 122941305336223, 106980807941644808, 122461210700419700713, 179068063215679396855393, 326696607497802174915500964, 729453937748303441283299140497 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 3 of A208788

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..185

EXAMPLE

Some solutions for n=4

..0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..1....0..1..0

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

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

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

CROSSREFS

Sequence in context: A216342 A207999 A223057 * A089638 A209175 A209719

Adjacent sequences:  A208780 A208781 A208782 * A208784 A208785 A208786

KEYWORD

nonn

AUTHOR

R. H. Hardin Mar 01 2012

STATUS

approved

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Last modified August 14 13:43 EDT 2022. Contains 356117 sequences. (Running on oeis4.)