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!)
A234054 T(n,k)=Number of (n+2)X(k+2) 0..2 arrays with no increasing sequence of length 3 horizontally, diagonally downwards or antidiagonally downwards 13

%I #4 Dec 19 2013 05:54:45

%S 16488,367857,402000,8226630,23857470,9780884,184027176,1425517650,

%T 1539009351,237966121,4114129859,85374621482,244179417600,99212997474,

%U 5789254059,91973148874,5109216554257,38905863275507,41752512059499

%N T(n,k)=Number of (n+2)X(k+2) 0..2 arrays with no increasing sequence of length 3 horizontally, diagonally downwards or antidiagonally downwards

%C Table starts

%C .....16488......367857........8226630.........184027176..........4114129859

%C ....402000....23857470.....1425517650.......85374621482.......5109216554257

%C ...9780884..1539009351...244179417600....38905863275507....6195468706439527

%C .237966121.99212997474.41752512059499.17672707197951102.7477499627486219639

%H R. H. Hardin, <a href="/A234054/b234054.txt">Table of n, a(n) for n = 1..83</a>

%F Empirical for column k:

%F k=1: [linear recurrence of order 11]

%F k=2: [order 39]

%F Empirical for row n:

%F n=1: [linear recurrence of order 32]

%e Some solutions for n=1 k=4

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

%e ..1..0..2..1..2..1....0..0..0..1..1..1....0..0..1..1..0..2....1..2..0..0..2..0

%e ..2..0..1..1..1..1....1..1..0..0..1..1....0..1..0..1..1..1....1..2..0..0..0..2

%K nonn,tabl

%O 1,1

%A _R. H. Hardin_, Dec 19 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 April 19 17:39 EDT 2024. Contains 371797 sequences. (Running on oeis4.)