A300774 - OEIS

%I #4 Mar 12 2018 11:27:45

%S 0,19,102,735,10374,116954,1413931,17336190,210669938,2579232344,

%T 31507335039,385235115962,4709579663351,57576031578161,

%U 703919626655464,8605843851625144,105213106646598954,1286307937687623392

%N Number of nX6 0..1 arrays with every element equal to 2, 3, 4 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.

%C Column 6 of A300776.

%H R. H. Hardin, <a href="/A300774/b300774.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A300776.

%K nonn

%O 1,2

%A _R. H. Hardin_, Mar 12 2018