The On-Line Encyclopedia of Integer Sequences (OEIS)

The OEIS is supported by the many generous donors to the OEIS Foundation.

Revision History for A203190

(Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
Showing all changes.

A203190

Number of nX7 0..4 arrays with every nonzero element less than or equal to some horizontal or vertical neighbor
(history; published version)

#5 by Russ Cox at Sat Mar 31 12:36:55 EDT 2012

AUTHOR

_R. H. Hardin (rhhardin(AT)att.net) _ Dec 30 2011

Discussion

Sat Mar 31

12:36

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

#4 by Ron Hardin at Fri Dec 30 08:17:22 EST 2011

STATUS

editing

approved

#3 by Ron Hardin at Fri Dec 30 08:17:17 EST 2011

LINKS

R. H. Hardin, <a href="/A203190/b203190.txt">Table of n, a(n) for n = 1..12</a>

#2 by Ron Hardin at Fri Dec 30 08:16:58 EST 2011

NAME

allocated for Ron HardinNumber of nX7 0..4 arrays with every nonzero element less than or equal to some horizontal or vertical neighbor

DATA

3985, 271942421, 9045835238617, 257892549401944763, 7699282272868336554723, 232103745979086439437076471, 6970324759861265041580630860421, 209209746691129348723930919203856597

OFFSET

1,1

COMMENTS

Column 7 of A203191

EXAMPLE

Some solutions for n=4

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

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

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

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

KEYWORD

allocated

nonn

AUTHOR

R. H. Hardin (rhhardin(AT)att.net) Dec 30 2011

STATUS

approved

editing

#1 by Ron Hardin at Fri Dec 30 08:03:35 EST 2011

NAME

allocated for Ron Hardin

KEYWORD

allocated

STATUS

approved