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%I #4 Jan 07 2017 08:12:43
%S 122,34096,2642832,287101721,29920114246,3130289979912,
%T 327452072560351,34253681605884733,3583141682779617309,
%U 374819732160862162533,39208546724956189523288,4101465758881532501508232
%N Number of 6Xn 0..2 arrays with no element equal to more than one of its horizontal and antidiagonal neighbors and with new values introduced in order 0 sequentially upwards.
%C Row 6 of A280673.
%H R. H. Hardin, <a href="/A280678/b280678.txt">Table of n, a(n) for n = 1..133</a>
%e Some solutions for n=2
%e ..0..1. .0..0. .0..1. .0..1. .0..1. .0..1. .0..0. .0..0. .0..1. .0..0
%e ..1..2. .1..2. .2..0. .2..0. .2..1. .0..2. .1..0. .1..2. .2..1. .1..0
%e ..1..2. .1..2. .1..1. .0..2. .0..2. .1..2. .1..0. .0..1. .0..0. .0..2
%e ..0..2. .2..0. .0..2. .1..2. .1..1. .2..0. .0..2. .0..2. .1..2. .1..2
%e ..0..0. .2..0. .1..0. .1..0. .2..0. .2..0. .1..0. .1..0. .2..1. .1..2
%e ..1..2. .1..1. .1..2. .2..0. .2..0. .1..0. .1..0. .1..0. .0..2. .1..2
%Y Cf. A280673.
%K nonn
%O 1,1
%A _R. H. Hardin_, Jan 07 2017