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

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A218317 Hilltop maps: number of nX6 binary arrays indicating the locations of corresponding elements not exceeded by any king-move neighbor in a random 0..2 nX6 array 1

%I

%S 49,3969,261121,16654561,1065434881,68184176641,4363582588561,

%T 279254546449921,17871334586731521,1143704311285736641,

%U 73193166320198831361,4684112443348657152001,299767184304336708080625

%N Hilltop maps: number of nX6 binary arrays indicating the locations of corresponding elements not exceeded by any king-move neighbor in a random 0..2 nX6 array

%C Column 6 of A218319

%H R. H. Hardin, <a href="/A218317/b218317.txt">Table of n, a(n) for n = 1..92</a>

%F Empirical: a(n) = 56*a(n-1) +448*a(n-2) +3577*a(n-3) +28616*a(n-4) +228928*a(n-5) -3430*a(n-6) -24696*a(n-7) -24010*a(n-9) -326536*a(n-10) +16807*a(n-12) +117649*a(n-15)

%e Some solutions for n=3

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Oct 25 2012

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.

Last modified June 25 13:19 EDT 2022. Contains 354851 sequences. (Running on oeis4.)