The On-Line Encyclopedia of Integer Sequences (OEIS)

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A297651

Number of nX5 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 1, 2 or 3 neighboring 1s.
(history; published version)

#4 by R. H. Hardin at Tue Jan 02 15:12:20 EST 2018

STATUS

editing

approved

#3 by R. H. Hardin at Tue Jan 02 15:12:16 EST 2018

LINKS

R. H. Hardin, <a href="/A297651/b297651.txt">Table of n, a(n) for n = 1..210</a>

R. H. Hardin, <a href="/A297651/a297651.txt">Empirical recurrence of order 60</a>

#2 by R. H. Hardin at Tue Jan 02 15:07:03 EST 2018

NAME

allocated for R. H. Hardin

Number of nX5 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 1, 2 or 3 neighboring 1s.

DATA

12, 494, 6838, 131044, 2525244, 46187510, 864944851, 16149058068, 300870617401, 5613564284292, 104698838837111, 1952650753998364, 36420081863348278, 679272850629109385, 12669181880403565080, 236294959020596014510

OFFSET

1,1

COMMENTS

Column 5 of A297654.

FORMULA

Empirical recurrence of order 60 (see link above)

EXAMPLE

Some solutions for n=4

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

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

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

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

CROSSREFS

Cf. A297654.

KEYWORD

allocated

nonn

AUTHOR

R. H. Hardin, Jan 02 2018

STATUS

approved

editing

#1 by R. H. Hardin at Tue Jan 02 15:02:26 EST 2018

NAME

allocated for R. H. Hardin

KEYWORD

allocated

STATUS

approved