The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A268028 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A268028

Number of 4Xn 0..2 arrays with every repeated value in every row greater than or equal to, and in every column greater than, the previous repeated value.
(history; published version)

#4 by R. H. Hardin at Sun Jan 24 14:12:01 EST 2016

STATUS

editing

approved

#3 by R. H. Hardin at Sun Jan 24 14:11:57 EST 2016

LINKS

R. H. Hardin, <a href="/A268028/b268028.txt">Table of n, a(n) for n = 1..210</a>

#2 by R. H. Hardin at Sun Jan 24 14:11:42 EST 2016

NAME

allocated for R. H. Hardin

Number of 4Xn 0..2 arrays with every repeated value in every row greater than or equal to, and in every column greater than, the previous repeated value.

DATA

63, 3969, 250047, 13530274, 687233742, 32747526923, 1486191908610, 64725260937166, 2722665554883854, 111163751115106132, 4422667685678114786, 172002220213857351197, 6556076286013521999466, 245446300682062937711088

OFFSET

1,1

COMMENTS

Row 4 of A268026.

EXAMPLE

Some solutions for n=2

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

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

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

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

CROSSREFS

Cf. A268026.

KEYWORD

allocated

nonn

AUTHOR

R. H. Hardin, Jan 24 2016

STATUS

approved

editing

#1 by R. H. Hardin at Sun Jan 24 14:05:43 EST 2016

NAME

allocated for R. H. Hardin

KEYWORD

allocated

STATUS

approved