login

Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.

Number of n X 6 0..1 arrays with every element equal to 0, 1, 2, 3, 4, 5 or 8 king-move adjacent elements, with upper left element zero.
1

%I #6 Dec 27 2023 12:21:00

%S 32,2048,81105,3742524,170243005,7790212998,356575568843,

%T 16322570202905,747207636738251,34205652494216087,1565866504708915868,

%U 71682283388175729699,3281474035612238093148,150219433611860316291070

%N Number of n X 6 0..1 arrays with every element equal to 0, 1, 2, 3, 4, 5 or 8 king-move adjacent elements, with upper left element zero.

%C Column 6 of A299740.

%H R. H. Hardin, <a href="/A299738/b299738.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A299740.

%K nonn

%O 1,1

%A _R. H. Hardin_, Feb 18 2018