A268098 Number of 6Xn 0..2 arrays with every repeated value in every row not one larger and in every column one larger mod 3 than the previous repeated value, and upper left element zero.

132, 52272, 20699712, 6564461764, 1911026997488, 517166705601727, 133606332571283245, 33366129349890481210, 8135776113068748630862, 1949697101170403359572912

Offset

1,1

Comments

Row 6 of A268092.

Links

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

Example

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

Crossrefs

Cf. A268092.

Sequence in context: A181194 A227596 A267951 * A289294 A321975 A289568

Adjacent sequences: A268095 A268096 A268097 * A268099 A268100 A268101

Keyword

nonn

Author

R. H. Hardin, Jan 26 2016

Status

approved