A275136 - OEIS

%I #6 Oct 19 2021 21:22:02

%S 32,972,3148,31772,315021,3146574,31446544,315531602,3172042022,

%T 31863778966,320131530703,3216908659843,32328900869180,

%U 324884120562167,3264789400925918,32809744239367085,329717318770636840

%N Number of 7 X n 0..2 arrays with no element equal to any value at offset (-2,-2) (-1,0) or (-1,1) and new values introduced in order 0..2.

%C Row 7 of A275131.

%H R. H. Hardin, <a href="/A275136/b275136.txt">Table of n, a(n) for n = 1..210</a>

%H R. H. Hardin, <a href="/A275136/a275136.txt">Empirical recurrence of order 53</a>

%F Empirical recurrence of order 53 (see link above).

%e Some solutions for n=4

%e ..0..1..0..0. .0..0..1..0. .0..0..0..0. .0..1..0..2. .0..1..0..0

%e ..2..2..1..1. .2..2..2..2. .1..1..1..1. .2..2..1..0. .2..2..1..1

%e ..1..0..2..2. .1..1..1..1. .0..2..2..2. .1..0..2..2. .1..0..2..2

%e ..2..1..1..1. .2..2..0..0. .1..0..0..0. .2..1..1..0. .2..1..0..0

%e ..0..2..0..2. .0..1..2..2. .2..1..1..1. .0..2..2..2. .0..2..2..2

%e ..1..1..1..0. .2..0..0..1. .0..2..2..2. .1..0..1..0. .1..0..0..0

%e ..0..0..2..1. .1..2..2..0. .1..0..1..0. .2..2..2..1. .2..2..1..1

%Y Cf. A275131.

%K nonn

%O 1,1

%A _R. H. Hardin_, Jul 17 2016