A271137 - OEIS

A271137

Number of n X n X n triangular 0..2 arrays with new values introduced in sequential zero-upwards order and exactly one 2 X 2 X 2 triangle having values all different.

0, 1, 44, 2529, 239700, 41288768, 13536514992, 8663986363705, 10993523599196564, 27931583281337318808, 143073130086443218161862, 1484701531903686677651991942, 31325520846551262114728413158870

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

OFFSET

1,3

COMMENTS

Column 2 of A271141.

LINKS

Table of n, a(n) for n=1..13.

EXAMPLE

Some solutions for n=4

.....0........0........0........0........0........0........0........0

....1.0......0.0......1.2......1.2......1.0......1.1......1.1......1.1

...1.0.2....1.2.2....1.1.2....1.2.2....2.2.2....1.2.0....2.2.0....1.1.1