A273963 - OEIS

A273963

Number of nX4 0..3 arrays with no three equal values forming an isosceles right triangle, and new values introduced in 0..3 order.

15, 1264, 49702, 543906, 4010258, 16365681, 55643290, 210405148, 904155053, 4384022592, 21350702064, 105038486755, 514302715276, 2558243582787

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

OFFSET

1,1

COMMENTS

Column 4 of A273964.

LINKS

EXAMPLE

Some solutions for n=3

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

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

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

CROSSREFS

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jun 05 2016

STATUS

approved