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!)
A260105 Number of (n+2)X(7+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00000101 or 00010101 1

%I

%S 6068,16453,42372,121800,336302,965197,2703084,7792018,22113228,

%T 63167136,179982226,513478377,1462536224,4168738950,11886385630,

%U 33880353109,96579218388,275361558899,784995134662,2237694214071,6379091028140

%N Number of (n+2)X(7+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00000101 or 00010101

%C Column 7 of A260106

%H R. H. Hardin, <a href="/A260105/b260105.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=4

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

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

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

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

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

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

%Y Cf. A260106

%K nonn

%O 1,1

%A _R. H. Hardin_, Jul 16 2015

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 May 24 05:29 EDT 2022. Contains 354005 sequences. (Running on oeis4.)