|
%I #6 Jun 26 2022 19:45:59
%S 1,26,254,1554,10734,78660,560942,3987615,28515358,203892406,
%T 1456644769,10408749868,74388848144,531625780268,3799304215218,
%U 27152396258135,194049997801018,1386817640950191,9911186585406690,70832453927754955
%N Number of n X 6 0..1 arrays with each 1 horizontally, vertically or antidiagonally adjacent to 2 or 4 neighboring 1's.
%C Column 6 of A296541.
%H R. H. Hardin, <a href="/A296539/b296539.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=6
%e ..1..1..0..0..1..0. .0..1..1..1..1..0. .0..0..1..1..1..0. .0..0..1..1..1..1
%e ..1..0..0..1..1..0. .0..1..1..1..0..0. .0..0..1..1..0..0. .0..1..0..0..0..1
%e ..0..1..0..0..0..0. .1..0..0..1..0..1. .1..1..0..1..0..0. .1..0..0..0..1..0
%e ..1..1..0..0..1..1. .1..0..0..1..1..1. .1..1..0..1..1..0. .1..1..0..1..0..0
%e ..0..0..1..0..1..0. .1..1..1..1..0..0. .1..1..1..1..0..1. .0..1..0..1..0..1
%e ..0..1..1..0..0..0. .0..0..1..0..0..0. .1..0..1..0..1..1. .0..1..1..0..1..1
%Y Cf. A296541.
%K nonn
%O 1,2
%A _R. H. Hardin_, Dec 15 2017
| 