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A275136
Number of 7 X n 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.
1
32, 972, 3148, 31772, 315021, 3146574, 31446544, 315531602, 3172042022, 31863778966, 320131530703, 3216908659843, 32328900869180, 324884120562167, 3264789400925918, 32809744239367085, 329717318770636840
OFFSET
1,1
COMMENTS
Row 7 of A275131.
FORMULA
Empirical recurrence of order 53 (see link above).
EXAMPLE
Some solutions for n=4
..0..1..0..0. .0..0..1..0. .0..0..0..0. .0..1..0..2. .0..1..0..0
..2..2..1..1. .2..2..2..2. .1..1..1..1. .2..2..1..0. .2..2..1..1
..1..0..2..2. .1..1..1..1. .0..2..2..2. .1..0..2..2. .1..0..2..2
..2..1..1..1. .2..2..0..0. .1..0..0..0. .2..1..1..0. .2..1..0..0
..0..2..0..2. .0..1..2..2. .2..1..1..1. .0..2..2..2. .0..2..2..2
..1..1..1..0. .2..0..0..1. .0..2..2..2. .1..0..1..0. .1..0..0..0
..0..0..2..1. .1..2..2..0. .1..0..1..0. .2..2..2..1. .2..2..1..1
CROSSREFS
Cf. A275131.
Sequence in context: A299178 A299940 A274894 * A276298 A282313 A264344
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jul 17 2016
STATUS
approved