The On-Line Encyclopedia of Integer Sequences (OEIS)

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A205890

Number of (n+1)X5 0..2 arrays with 2X2 subblock determinants differing from horizontal neighbors and permanents differing from vertical neighbors
(history; published version)

#5 by Russ Cox at Sat Mar 31 12:37:07 EDT 2012

AUTHOR

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

Discussion

Sat Mar 31

12:37

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

#4 by Ron Hardin at Wed Feb 01 14:06:06 EST 2012

STATUS

editing

approved

#3 by Ron Hardin at Wed Feb 01 14:06:02 EST 2012

LINKS

R. H. Hardin, <a href="/A205890/b205890.txt">Table of n, a(n) for n = 1..210</a>

#2 by Ron Hardin at Wed Feb 01 14:05:42 EST 2012

NAME

allocated for Ron HardinNumber of (n+1)X5 0..2 arrays with 2X2 subblock determinants differing from horizontal neighbors and permanents differing from vertical neighbors

DATA

28522, 1042382, 34564494, 1076391970, 34054078628, 1085248304854, 34411101807016, 1090399519549578, 34596640031052688, 1097583915746319236, 34810930447851997462, 1104146863967891548832, 35023728703233073541734

OFFSET

1,1

COMMENTS

Column 4 of A205894

EXAMPLE

Some solutions for n=3

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

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

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

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

KEYWORD

allocated

nonn

AUTHOR

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

STATUS

approved

editing

#1 by Ron Hardin at Wed Feb 01 14:01:38 EST 2012

NAME

allocated for Ron Hardin

KEYWORD

allocated

STATUS

approved