login

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

A295845
Number of n X 6 0..1 arrays with each 1 adjacent to 1 or 2 king-move neighboring 1's.
1
21, 789, 9645, 190943, 3804661, 68406015, 1296880337, 24467737897, 457692634063, 8608718745329, 161762366006125, 3037600586563709, 57071758962259963, 1072139556077836073, 20140121314504297621, 378351575243122525707
OFFSET
1,1
COMMENTS
Column 6 of A295847.
FORMULA
Empirical recurrence of order 73 (see link above).
EXAMPLE
Some solutions for n=4
..0..0..0..0..0..1. .0..0..1..1..0..0. .0..0..1..1..0..1. .1..1..0..0..0..0
..0..0..0..1..0..1. .0..1..0..0..0..0. .0..1..0..0..0..1. .0..0..0..0..0..1
..0..0..0..1..0..0. .0..0..0..1..0..0. .0..1..0..0..0..0. .1..1..0..1..0..1
..1..1..0..1..0..0. .0..0..1..1..0..0. .0..0..0..0..0..0. .0..0..0..1..0..1
CROSSREFS
Cf. A295847.
Sequence in context: A012645 A220069 A028469 * A366301 A119414 A012819
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 29 2017
STATUS
approved