The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A208484 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A208484

Number of (n+1) X (n+1) 0..3 arrays with the number of clockwise edge increases in every 2 X 2 subblock equal to the number of counterclockwise edge increases.
(history; published version)

#7 by Jon E. Schoenfield at Tue Oct 06 21:52:43 EDT 2015

STATUS

editing

approved

#6 by Jon E. Schoenfield at Tue Oct 06 21:52:39 EDT 2015

NAME

Number of (n+1) X (n+1) 0..3 arrays with the number of clockwise edge increases in every 2X2 2 X 2 subblock equal to the number of anticlockwise counterclockwise edge increases.

COMMENTS

Diagonal of A208492.

EXAMPLE

Some solutions for n=4:

AUTHOR

R. H. Hardin , Feb 27 2012

STATUS

approved

editing

#5 by Russ Cox at Sat Mar 31 12:37:23 EDT 2012

AUTHOR

_R. H. Hardin (rhhardin(AT)att.net) _ Feb 27 2012

Discussion

Sat Mar 31

12:37

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

#4 by Ron Hardin at Mon Feb 27 08:58:22 EST 2012

STATUS

editing

approved

#3 by Ron Hardin at Mon Feb 27 08:58:14 EST 2012

NAME

allocated for Ron HardinNumber of (n+1)X(n+1) 0..3 arrays with the number of clockwise edge increases in every 2X2 subblock equal to the number of anticlockwise edge increases

DATA

152, 33416, 43689232, 343092183768, 16261866249456960, 4664832940178290442768, 8112174131718066295245481744, 85615997981426512072932676873435656

OFFSET

1,1

COMMENTS

Diagonal of A208492

EXAMPLE

Some solutions for n=4

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

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

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

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

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

KEYWORD

allocated

nonn

AUTHOR

R. H. Hardin (rhhardin(AT)att.net) Feb 27 2012

STATUS

approved

editing

#2 by Ron Hardin at Mon Feb 27 08:56:31 EST 2012

KEYWORD

allocating

allocated

#1 by Ron Hardin at Mon Feb 27 08:56:31 EST 2012

NAME

allocated for Ron Hardin

KEYWORD

allocating

STATUS

approved