The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A304929

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Number of nX6 0..1 arrays with every element unequal to 0, 1, 3, 5 or 7 king-move adjacent elements, with upper left element zero.
(history; published version)

#4 by R. H. Hardin at Mon May 21 09:22:49 EDT 2018

STATUS

editing

approved

#3 by R. H. Hardin at Mon May 21 09:22:46 EDT 2018

LINKS

R. H. Hardin, <a href="/A304929/b304929.txt">Table of n, a(n) for n = 1..210</a>

#2 by R. H. Hardin at Mon May 21 09:22:28 EDT 2018

NAME

allocated for R. H. Hardin

Number of nX6 0..1 arrays with every element unequal to 0, 1, 3, 5 or 7 king-move adjacent elements, with upper left element zero.

DATA

13, 105, 101, 374, 1034, 2653, 6426, 16855, 42256, 110818, 293243, 759597, 1962550, 5113934, 13247520, 34363929, 89475407, 232484569, 603475499, 1568532379, 4074861880, 10582600325, 27499026562, 71450610025, 185607848522

OFFSET

1,1

COMMENTS

Column 6 of A304931.

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

Cf. A304931.

KEYWORD

allocated

nonn

AUTHOR

R. H. Hardin, May 21 2018

STATUS

approved

editing

#1 by R. H. Hardin at Mon May 21 09:20:20 EDT 2018

NAME

allocated for R. H. Hardin

KEYWORD

allocated

STATUS

approved