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.

48, 1944, 29370, 536406, 9902040, 183551766, 3403449396, 63272648886, 1177544081274, 21902996126304, 407411914385880, 7579730569124166, 141023976164929368, 2623681154691815424, 48812099869891553724

Offset

1,1

Comments

Column 7 of A274959.

Links

R. H. Hardin, Table of n, a(n) for n = 1..210

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

Adjacent sequences: A274955 A274956 A274957 * A274959 A274960 A274961

Keyword

nonn

Author

R. H. Hardin, Jul 12 2016

Status

approved