A201725 - OEIS

A201725

Number of nX4 0..4 arrays with rows and columns lexicographically nondecreasing and no element equal to the number of horizontal and vertical neighbors equal to itself

35, 3567, 499474, 56836178, 4720850001, 299927801278, 15249209002599, 640855702702745, 22831719167592564, 703807755707555744, 19083627099219491070, 461269189538111185232, 10047567066462239739922

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

OFFSET

1,1

COMMENTS

Column 4 of A201729

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..120

EXAMPLE

Some solutions for n=2

..0..0..4..4....0..2..3..4....0..0..0..3....0..0..3..3....1..3..3..4

..1..2..2..3....0..3..0..0....0..2..3..1....1..4..2..2....4..0..0..1

CROSSREFS