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!)
A326104 Number of nX7 0..1 arrays with every element equal to 0, 1, 2, 3 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero. 1

%I #4 Jun 06 2019 07:55:39

%S 64,5536,181227,7140349,285501774,11436374461,457515856087,

%T 18304957522469,732434052866467,29307016828624452,1172658992868162369,

%U 46921473708684800557,1877464197930752217833,75122790849233220662502

%N Number of nX7 0..1 arrays with every element equal to 0, 1, 2, 3 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.

%C Column 7 of A326105.

%H R. H. Hardin, <a href="/A326104/b326104.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A326105.

%K nonn

%O 1,1

%A _R. H. Hardin_, Jun 06 2019

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 13:41 EDT 2024. Contains 371957 sequences. (Running on oeis4.)