The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A297676 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A297676

Number of n X n 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 0, 1 or 4 neighboring 1's.
(history; published version)

#6 by Wesley Ivan Hurt at Sun May 03 15:35:13 EDT 2020

STATUS

editing

approved

#5 by Wesley Ivan Hurt at Sun May 03 15:35:07 EDT 2020

NAME

Number of nXn n X n 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 0, 1 or 4 neighboring 1s1's.

STATUS

approved

editing

#4 by R. H. Hardin at Wed Jan 03 09:17:21 EST 2018

STATUS

editing

approved

#3 by R. H. Hardin at Wed Jan 03 09:16:44 EST 2018

NAME

allocated for R. H. Hardin

Number of nXn 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 0, 1 or 4 neighboring 1s.

DATA

2, 11, 150, 4633, 401678, 78957968, 41030621948, 49892385650107, 157266548152111938, 1187668466030040777022, 22731639382952184172610914, 1058867886808501107531538859306

OFFSET

1,1

COMMENTS

Diagonal of A297682.

EXAMPLE

Some solutions for n=4

..1..0..0..0. .0..0..0..0. .1..0..0..0. .0..1..0..1. .0..0..0..1

..1..0..0..1. .0..0..0..0. .0..0..0..0. .0..1..0..1. .0..1..0..0

..1..0..0..0. .0..0..0..1. .1..0..0..1. .0..0..0..0. .0..0..1..1

..0..0..1..0. .0..0..0..0. .1..0..0..0. .0..0..1..0. .0..1..0..1

CROSSREFS

Cf. A297682.

KEYWORD

allocated

nonn

AUTHOR

R. H. Hardin, Jan 03 2018

STATUS

approved

editing

#2 by R. H. Hardin at Wed Jan 03 09:15:04 EST 2018

KEYWORD

allocating

allocated

#1 by R. H. Hardin at Wed Jan 03 09:15:04 EST 2018

NAME

allocated for R. H. Hardin

KEYWORD

allocating

STATUS

approved