A232915 Number of (7+1)X(n+1) 0..2 arrays with every element next to itself plus and minus one within the range 0..2 horizontally or antidiagonally

184, 122994, 123587140, 34359557398, 31320663237216, 21117749694519080, 11310637537927864312, 7189826929501741219160, 4644426920360476754336956, 2811028445165301856686931498

Offset

1,1

Comments

Row 7 of A232908

Links

Table of n, a(n) for n=1..10.

Example

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

Crossrefs

Sequence in context: A203843 A151586 A194614 * A139265 A243628 A353388

Adjacent sequences: A232912 A232913 A232914 * A232916 A232917 A232918

Keyword

nonn

Author

R. H. Hardin, Dec 02 2013

Status

approved