A267908 Number of nX4 0..2 arrays with every repeated value in every row unequal to the previous repeated value, and in every column equal to the previous repeated value, and new values introduced in row-major sequential order.

11, 726, 47916, 2331981, 98614986, 3774659262, 134786758099, 4574297266940, 149403639631334, 4738376096688749, 146873341033699972, 4471066919904073296, 134165935575637438787, 3980005021518381534082, 116980704393934615092268

Offset

1,1

Comments

Column 4 of A267911.

Links

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

Example

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

Crossrefs

Cf. A267911.

Sequence in context: A204701 A267954 A206646 * A180740 A330309 A110776

Adjacent sequences: A267905 A267906 A267907 * A267909 A267910 A267911

Keyword

nonn

Author

R. H. Hardin, Jan 22 2016

Status

approved