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Revision History for A203407

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A203407

T(n,k)=Number of (n+2)X(k+2) binary arrays avoiding patterns 000 and 111 in rows and columns
(history; published version)

#5 by Russ Cox at Sat Mar 31 12:36:56 EDT 2012

AUTHOR

_R. H. Hardin (rhhardin(AT)att.net) _ Jan 01 2012

Discussion

Sat Mar 31

12:36

OEIS Server: https://oeis.org/edit/global/875

#4 by Ron Hardin at Sun Jan 01 07:55:21 EST 2012

STATUS

editing

approved

#3 by Ron Hardin at Sun Jan 01 07:55:16 EST 2012

LINKS

R. H. Hardin, <a href="/A203407/b203407.txt">Table of n, a(n) for n = 1..160</a>

#2 by Ron Hardin at Sun Jan 01 07:54:58 EST 2012

NAME

allocated for Ron HardinT(n,k)=Number of (n+2)X(k+2) binary arrays avoiding patterns 000 and 111 in rows and columns

DATA

102, 378, 378, 1260, 2030, 1260, 4374, 9484, 9484, 4374, 14946, 46746, 60232, 46746, 14946, 51384, 225654, 408432, 408432, 225654, 51384, 176238, 1098136, 2699464, 3858082, 2699464, 1098136, 176238, 605022, 5327258, 18021052, 35345798

OFFSET

1,1

COMMENTS

Table starts

.....102.......378........1260..........4374...........14946............51384

.....378......2030........9484.........46746..........225654..........1098136

....1260......9484.......60232........408432.........2699464.........18021052

....4374.....46746......408432.......3858082........35345798........327725888

...14946....225654.....2699464......35345798.......446672706.......5723980832

...51384...1098136....18021052.....327725888......5723980832.....101578277384

..176238...5327258...119835492....3024430930.....72950746702....1791372199364

..605022..25875154...798096928...27962750194....931753350314...31670053199428

.2076288.125619088..5312099836..258345914196..11890606324592..559357046066336

.7126302.609970274.35365379640.2387518651034.151793100413822.9883171811276912

EXAMPLE

Some solutions for n=3 k=3

..1..0..1..0..1....1..0..1..0..1....0..0..1..1..0....1..1..0..0..1

..1..0..0..1..1....1..0..1..1..0....1..1..0..1..1....1..1..0..1..1

..0..1..1..0..0....0..1..0..1..0....0..0..1..0..1....0..0..1..1..0

..1..0..0..1..1....0..0..1..0..1....1..1..0..1..0....0..0..1..0..1

..1..1..0..0..1....1..0..0..1..1....1..1..0..0..1....1..1..0..0..1

CROSSREFS

Column 1 is A060521(n+2)

Column 2 is A060522(n+2)

KEYWORD

allocated

nonn,tabl

AUTHOR

R. H. Hardin (rhhardin(AT)att.net) Jan 01 2012

STATUS

approved

editing

#1 by Ron Hardin at Sun Jan 01 07:48:52 EST 2012

NAME

allocated for Ron Hardin

KEYWORD

allocated

STATUS

approved