The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A210141 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A210141

Number of (n+1)X7 0..3 arrays containing all values 0..3 with every 2X2 subblock having one, two or four distinct values, and new values 0..3 introduced in row major order
(history; published version)

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

AUTHOR

_R. H. Hardin (rhhardin(AT)att.net) _ Mar 17 2012

Discussion

Sat Mar 31

12:37

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

#4 by Ron Hardin at Sat Mar 17 20:57:41 EDT 2012

STATUS

editing

approved

#3 by Ron Hardin at Sat Mar 17 20:57:38 EDT 2012

LINKS

R. H. Hardin, <a href="/A210141/b210141.txt">Table of n, a(n) for n = 1..210</a>

#2 by Ron Hardin at Sat Mar 17 20:57:19 EDT 2012

NAME

allocated for Ron HardinNumber of (n+1)X7 0..3 arrays containing all values 0..3 with every 2X2 subblock having one, two or four distinct values, and new values 0..3 introduced in row major order

DATA

77934, 21511540, 5714971168, 1499212226898, 389550973002670, 100540191960863826, 25825997316374317466, 6612514023912830466845, 1689392659558935537327585, 430991542000743763901193762

OFFSET

1,1

COMMENTS

Column 6 of A210143

EXAMPLE

Some solutions for n=4

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

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

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

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

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

KEYWORD

allocated

nonn

AUTHOR

R. H. Hardin (rhhardin(AT)att.net) Mar 17 2012

STATUS

approved

editing

#1 by Ron Hardin at Sat Mar 17 20:50:54 EDT 2012

NAME

allocated for Ron Hardin

KEYWORD

allocated

STATUS

approved