A232514 Number of (n+1)X(7+1) 0..2 arrays with every element next to itself plus and minus one within the range 0..2 horizontally, diagonally or antidiagonally, with no adjacent elements equal

340, 1956, 24388, 270400, 3267824, 38988416, 476578496, 5831607392, 71731172848, 883465590796, 10895684078152, 134445500144828, 1659595814461872, 20489752990174828, 252999687876493464, 3124127399364936504

Offset

1,1

Comments

Column 7 of A232515

Links

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

R. H. Hardin, Empirical recurrence of order 78

Formula

Empirical recurrence of order 78 (see link above)

Example

Some solutions for n=3
..2..1..0..1..2..0..1..2....1..0..1..0..1..2..1..2....1..2..1..0..1..0..1..2
..0..1..2..1..2..0..1..0....1..2..1..0..1..2..1..0....1..0..1..0..1..2..1..2
..2..1..0..1..2..0..1..2....1..2..1..2..1..0..1..2....1..2..1..2..1..0..1..2
..2..1..2..1..2..0..1..2....1..0..1..0..1..0..1..0....1..0..1..2..1..0..1..0

Crossrefs

Sequence in context: A205223 A238040 A237959 * A187383 A265969 A265924

Adjacent sequences: A232511 A232512 A232513 * A232515 A232516 A232517

Keyword

nonn

Author

R. H. Hardin, Nov 25 2013

Status

approved