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A267915 Number of 4Xn 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. 1
13, 938, 43972, 2331981, 104491831, 4817531571, 207508204575, 8960112001163, 375426257575299, 15673406360156331, 644971612069289479, 26434347183210422659, 1075438596218448452443, 43616300555346348016639 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 4 of A267911.

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..151

EXAMPLE

Some solutions for n=3

..0..0..1....0..1..0....0..0..1....0..1..0....0..1..0....0..1..2....0..1..2

..1..2..0....0..2..0....2..1..2....0..0..1....0..2..0....2..2..1....2..0..0

..0..2..2....1..1..0....0..2..1....2..0..2....0..0..2....0..1..2....1..0..0

..0..1..0....2..2..1....0..1..2....1..0..2....2..1..1....0..1..0....2..1..1

CROSSREFS

Cf. A267911.

Sequence in context: A196728 A197068 A274544 * A096084 A203708 A301870

Adjacent sequences:  A267912 A267913 A267914 * A267916 A267917 A267918

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 22 2016

STATUS

approved

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Last modified July 11 05:49 EDT 2020. Contains 335609 sequences. (Running on oeis4.)