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A275348 Number of nX4 0..2 arrays with no element equal to any value at offset (-2,-1) (-2,1) or (-1,-2) and new values introduced in order 0..2. 1
14, 486, 1536, 6156, 31536, 175152, 982152, 5645376, 33154200, 197081664, 1176717272, 7054784192, 42406446716, 255340091420, 1538613779712, 9277198809020, 55956031182028, 337589432181096, 2036924853334720 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 4 of A275352.
LINKS
EXAMPLE
Some solutions for n=4
..0..1..2..1. .0..1..0..0. .0..1..1..1. .0..0..1..0. .0..0..1..0
..2..0..2..2. .1..1..1..0. .0..0..1..2. .2..1..2..1. .1..1..1..1
..2..1..0..1. .0..2..2..2. .2..2..2..2. .2..2..1..2. .1..2..2..0
..1..0..1..0. .2..2..2..0. .2..2..1..0. .2..1..0..0. .2..2..0..0
CROSSREFS
Cf. A275352.
Sequence in context: A171208 A331612 A275092 * A317635 A128051 A217337
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jul 24 2016
STATUS
approved

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Last modified February 21 06:16 EST 2024. Contains 370219 sequences. (Running on oeis4.)