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A206385 Number of nX4 0..6 arrays with no element equal to another within a city block distance of two, and new values 0..6 introduced in row major order 1
2, 33, 1368, 67716, 3328979, 164270604, 8094257014, 399073153303, 19671060879306, 969710249315342, 47801400299066037, 2356379708874988482, 116157573684573753928, 5725991875022057193833, 282262740672653624738188 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 4 of A206389
LINKS
EXAMPLE
Some solutions for n=4
..0..1..2..0....0..1..2..3....0..1..2..3....0..1..2..3....0..1..2..0
..2..3..4..5....3..4..5..6....2..3..4..5....2..3..4..5....2..3..4..5
..1..5..6..3....6..2..0..1....1..5..6..0....4..5..0..6....5..6..0..1
..0..2..1..4....0..1..3..2....3..4..1..2....6..1..3..4....4..1..5..6
CROSSREFS
Sequence in context: A204239 A198901 A242621 * A263052 A090335 A302452
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 07 2012
STATUS
approved

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Last modified April 14 18:28 EDT 2024. Contains 371667 sequences. (Running on oeis4.)