login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A302818 Number of nX6 0..1 arrays with every element equal to 0, 1, 2, 4 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero. 1

%I #4 Apr 13 2018 13:22:33

%S 32,360,2419,34957,455224,5520999,72576189,960564532,12417289008,

%T 162512726627,2137374128065,27943933038399,365979727306687,

%U 4801629031632168,62906786350458238,824314492591510708

%N Number of nX6 0..1 arrays with every element equal to 0, 1, 2, 4 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

%C Column 6 of A302820.

%H R. H. Hardin, <a href="/A302818/b302818.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A302820.

%K nonn

%O 1,1

%A _R. H. Hardin_, Apr 13 2018

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 24 20:08 EDT 2024. Contains 371963 sequences. (Running on oeis4.)