The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A220784 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A220784

Agreement numbers: number of nX3 arrays of the count of horizontal and vertical neighbors equal to the corresponding element in a random 0..3 nX3 array
(history; published version)

#3 by R. H. Hardin at Thu Dec 20 06:08:03 EST 2012

STATUS

editing

approved

#2 by R. H. Hardin at Thu Dec 20 06:08:01 EST 2012

NAME

allocated for R. H. Hardin

Agreement numbers: number of nX3 arrays of the count of horizontal and vertical neighbors equal to the corresponding element in a random 0..3 nX3 array

DATA

4, 66, 1197, 21551, 388159, 6991108, 125915577, 2267843221, 40845722318, 735665065835

OFFSET

1,1

COMMENTS

Column 3 of A220786

EXAMPLE

Some solutions for n=3

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

..2..4..3....0..3..3....3..3..1....1..1..0....1..3..0....1..1..1....0..2..2

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

KEYWORD

allocated

nonn

AUTHOR

R. H. Hardin Dec 20 2012

STATUS

approved

editing

#1 by R. H. Hardin at Thu Dec 20 06:05:06 EST 2012

NAME

allocated for R. H. Hardin

KEYWORD

allocated

STATUS

approved