login
A275034
Number of nX5 0..2 arrays with no element equal to any value at offset (0,-1) (-1,-2) or (-2,0) and new values introduced in order 0..2.
1
8, 144, 401, 2185, 11624, 64045, 351197, 1931619, 10581148, 58059378, 318560731, 1748917949, 9599252329, 52687857322, 289177064605, 1587227410761, 8711951100374, 47818210862037, 262463115597687, 1440600501570000
OFFSET
1,1
COMMENTS
Column 5 of A275037.
FORMULA
Empirical recurrence of order 70 (see link above)
EXAMPLE
Some solutions for n=4
..0..1..2..0..1. .0..1..0..2..1. .0..1..2..1..0. .0..1..2..0..2
..2..0..1..2..1. .0..2..1..0..1. .2..0..2..0..1. .2..0..1..0..1
..1..2..0..1..0. .1..0..2..1..0. .1..2..0..2..1. .1..0..1..2..0
..0..1..2..0..2. .1..0..2..1..0. .0..2..0..1..2. .0..2..0..1..0
CROSSREFS
Cf. A275037.
Sequence in context: A112464 A227875 A235383 * A275139 A370071 A241229
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jul 14 2016
STATUS
approved