A265191 - OEIS

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A265191

Number of nX4 arrays of permutations of 4 copies of 0..n-1 with no equal horizontal or antidiagonal neighbors and new values introduced sequentially from 0.

0, 1, 42, 20592, 20957398, 38833756515, 117650546564305, 543403955513408885

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,3

COMMENTS

Column 4 of A265192.

LINKS

Table of n, a(n) for n=1..8.

EXAMPLE

Some solutions for n=4

..0..1..2..1....0..1..0..2....0..1..2..1....0..1..0..1....0..1..2..3

..3..1..0..3....3..1..0..3....2..0..3..2....2..1..0..2....0..3..1..2