A297731 - OEIS

%I #6 Dec 15 2023 20:14:17

%S 1,61,223,1103,11341,65215,414651,3199929,21221319,144970307,

%T 1047053494,7264521347,50855971280,362028443523,2549685989975,

%U 18010279437728,127888224042540,905521633348229,6418498452393980,45573582767848687

%N Number of n X 6 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 2 or 4 neighboring 1's.

%C Column 6 of A297733.

%H R. H. Hardin, <a href="/A297731/b297731.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=6

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

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

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

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

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

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

%Y Cf. A297733.

%K nonn

%O 1,2

%A _R. H. Hardin_, Jan 04 2018