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!)
A300378 Number of nX6 0..1 arrays with every element equal to 0, 2 or 3 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero. 1

%I #4 Mar 04 2018 09:18:54

%S 1,42,58,237,1351,8839,53367,330577,2105279,13511213,85977238,

%T 547636965,3502829714,22360278474,142764723618,911920520092,

%U 5824257883326,37198229320503,237578872389910,1517410190488149,9691572674890208

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

%C Column 6 of A300380.

%H R. H. Hardin, <a href="/A300378/b300378.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A300380.

%K nonn

%O 1,2

%A _R. H. Hardin_, Mar 04 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 February 24 06:47 EST 2024. Contains 370294 sequences. (Running on oeis4.)