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A275092 Number of 4Xn 0..2 arrays with no element equal to any value at offset (0,-2) (-1,-2) or (-2,-1) and new values introduced in order 0..2. 1
14, 486, 1024, 3088, 12816, 53132, 232156, 984288, 4304608, 18686420, 81545856, 355534620, 1548803468, 6754327372, 29407955624, 128203071808, 558360538308, 2433519428172, 10601710686752, 46199290950200, 201293175872408 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Row 4 of A275090.
LINKS
FORMULA
Empirical recurrence of order 84 (see link above)
EXAMPLE
Some solutions for n=4
..0..1..1..2. .0..1..1..2. .0..1..2..0. .0..0..1..2. .0..1..2..0
..1..1..2..0. .1..1..2..2. .2..1..1..0. .1..0..2..1. .0..2..2..0
..1..1..2..0. .1..1..0..0. .1..1..0..0. .0..1..2..2. .0..1..2..0
..1..2..2..0. .0..2..2..0. .1..1..2..2. .0..2..2..0. .0..2..1..0
CROSSREFS
Cf. A275090.
Sequence in context: A200061 A171208 A331612 * A275348 A317635 A128051
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jul 16 2016
STATUS
approved

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Last modified April 20 17:12 EDT 2024. Contains 371845 sequences. (Running on oeis4.)