|
%I #4 Jul 16 2016 09:25:01
%S 14,486,1024,3088,12816,53132,232156,984288,4304608,18686420,81545856,
%T 355534620,1548803468,6754327372,29407955624,128203071808,
%U 558360538308,2433519428172,10601710686752,46199290950200,201293175872408
%N Number of 4Xn 0..2 arrays with no element equal to any value at offset (0,-2) (-1,-2) or (-2,-1) and new values introduced in order 0..2.
%C Row 4 of A275090.
%H R. H. Hardin, <a href="/A275092/b275092.txt">Table of n, a(n) for n = 1..210</a>
%H R. H. Hardin, <a href="/A275092/a275092.txt">Empirical recurrence of order 84</a>
%F Empirical recurrence of order 84 (see link above)
%e Some solutions for n=4
%e ..0..1..1..2. .0..1..1..2. .0..1..2..0. .0..0..1..2. .0..1..2..0
%e ..1..1..2..0. .1..1..2..2. .2..1..1..0. .1..0..2..1. .0..2..2..0
%e ..1..1..2..0. .1..1..0..0. .1..1..0..0. .0..1..2..2. .0..1..2..0
%e ..1..2..2..0. .0..2..2..0. .1..1..2..2. .0..2..2..0. .0..2..1..0
%Y Cf. A275090.
%K nonn
%O 1,1
%A _R. H. Hardin_, Jul 16 2016
| 