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A275129
Number of nX6 0..2 arrays with no element equal to any value at offset (-2,-2) (-1,0) or (-1,1) and new values introduced in order 0..2.
2
122, 1024, 2607, 11092, 71576, 473185, 3146574, 20970214, 139845553, 930732169, 6190918966, 41214051338, 274484938098, 1827596183195, 12167228578454, 81014307245606, 539449424460354, 3591778777900364, 23914435700214624
OFFSET
1,1
COMMENTS
Column 6 of A275131.
FORMULA
Empirical recurrence of order 67 (see link above)
EXAMPLE
Some solutions for n=4
..0..0..0..1..1..1. .0..0..1..1..1..2. .0..0..1..2..1..2. .0..0..0..1..1..2
..1..1..2..0..2..0. .2..2..0..0..0..1. .1..2..0..0..0..1. .1..1..2..2..0..1
..2..0..1..1..1..2. .0..1..2..1..2..0. .0..1..2..2..2..0. .0..0..1..1..2..2
..1..2..0..0..0..1. .2..0..0..0..1..2. .2..0..0..1..1..1. .2..2..0..0..1..0
CROSSREFS
Cf. A275131.
Sequence in context: A092775 A238033 A275181 * A281060 A274726 A249532
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jul 17 2016
STATUS
approved