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!)
A223429 5X5X5 triangular graph without horizontal edges coloring a rectangular array: number of nX5 0..14 arrays where 0..14 label nodes of a graph with edges 0,1 0,2 1,3 1,4 2,4 2,5 3,6 3,7 4,7 4,8 5,8 5,9 6,10 6,11 7,11 7,12 8,12 8,13 9,13 9,14 and every array movement to a horizontal or vertical neighbor moves along an edge of this graph 1

%I

%S 1088,76384,6256832,522011152,44494633876,3786278496752,

%T 325249041493488,27818291732538560,2394866308625232348,

%U 205161525882369203816,17674243382606574047928,1514928267584528501654120

%N 5X5X5 triangular graph without horizontal edges coloring a rectangular array: number of nX5 0..14 arrays where 0..14 label nodes of a graph with edges 0,1 0,2 1,3 1,4 2,4 2,5 3,6 3,7 4,7 4,8 5,8 5,9 6,10 6,11 7,11 7,12 8,12 8,13 9,13 9,14 and every array movement to a horizontal or vertical neighbor moves along an edge of this graph

%C Column 5 of A223432

%H R. H. Hardin, <a href="/A223429/b223429.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=3

%e ..0..1..4..1..3....0..1..4..7..3....0..1..4..7..3....0..1..4..8..4

%e ..1..3..1..3..6....1..4..7..4..1....1..3..7.12..7....1..0..1..4..1

%e ..0..1..3..6.11....4..7.12..7..4....4..7.12..7.12....3..1..3..1..0

%K nonn

%O 1,1

%A _R. H. Hardin_ Mar 20 2013

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 August 11 10:15 EDT 2022. Contains 356065 sequences. (Running on oeis4.)