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A274958 Number of nX7 0..2 arrays with no element equal to any value at offset (-1,-1) (-2,0) or (0,-2) and new values introduced in order 0..2. 1
48, 1944, 29370, 536406, 9902040, 183551766, 3403449396, 63272648886, 1177544081274, 21902996126304, 407411914385880, 7579730569124166, 141023976164929368, 2623681154691815424, 48812099869891553724 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 7 of A274959.
LINKS
EXAMPLE
Some solutions for n=3
..0..0..1..2..0..0..2. .0..1..1..2..2..1..1. .0..1..1..0..2..2..0
..1..1..2..0..1..1..2. .0..1..2..0..1..1..0. .2..1..0..2..1..0..0
..1..2..0..0..2..2..0. .1..2..0..1..1..0..2. .1..0..2..2..0..0..2
CROSSREFS
Cf. A274959.
Sequence in context: A152068 A290404 A276247 * A165043 A301859 A233259
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jul 12 2016
STATUS
approved

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Last modified July 17 05:50 EDT 2024. Contains 374360 sequences. (Running on oeis4.)