The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A205175

(Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
Showing all changes.

A205175

Number of (n+1)X3 0..3 arrays with the permanents of 2X2 subblocks nondecreasing rightwards and downwards
(history; published version)

#5 by Russ Cox at Sat Mar 31 12:37:05 EDT 2012

AUTHOR

_R. H. Hardin (rhhardin(AT)att.net) _ Jan 22 2012

Discussion

Sat Mar 31

12:37

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

#4 by Ron Hardin at Sun Jan 22 19:54:10 EST 2012

STATUS

editing

approved

#3 by Ron Hardin at Sun Jan 22 19:54:05 EST 2012

LINKS

R. H. Hardin, <a href="/A205175/b205175.txt">Table of n, a(n) for n = 1..210</a>

#2 by Ron Hardin at Sun Jan 22 19:53:47 EST 2012

NAME

allocated for Ron HardinNumber of (n+1)X3 0..3 arrays with the permanents of 2X2 subblocks nondecreasing rightwards and downwards

DATA

2504, 61320, 1373400, 24657580, 431119786, 6934715463, 111837040063, 1771131367142, 28327757365626, 453494114475033, 7305871237209949, 117969494611489634, 1909620189311351615, 30943236980670320787

OFFSET

1,1

COMMENTS

Column 2 of A205181

EXAMPLE

Some solutions for n=4

..0..1..0....2..0..3....0..1..1....2..3..1....1..3..2....2..1..0....1..3..2

..2..3..2....0..0..2....1..3..3....1..1..3....3..1..3....3..0..3....0..1..0

..1..1..1....1..1..0....3..2..2....3..3..1....2..3..2....0..1..2....2..0..2

..3..3..3....2..1..3....1..3..3....0..2..3....2..3..2....3..1..1....2..1..3

..1..1..1....1..1..2....3..2..2....3..2..3....2..3..3....1..1..3....0..1..1

KEYWORD

allocated

nonn

AUTHOR

R. H. Hardin (rhhardin(AT)att.net) Jan 22 2012

STATUS

approved

editing

#1 by Ron Hardin at Sun Jan 22 19:51:21 EST 2012

NAME

allocated for Ron Hardin

KEYWORD

allocated

STATUS

approved