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”).

A298442
Number of n X 6 0..1 arrays with every element equal to 0, 3, 4, 5 or 6 king-move adjacent elements, with upper left element zero.
1
1, 9, 36, 105, 1270, 10681, 72509, 692536, 6184710, 57152783, 516280067, 4747551849, 43550580792, 399497533186, 3665329764088, 33645393094604, 308806053669110, 2834375855232312, 26016168516625808, 238799862303743088
OFFSET
1,2
COMMENTS
Column 6 of A298444.
LINKS
EXAMPLE
Some solutions for n=5
..0..0..0..1..0..0. .0..1..1..1..1..0. .0..1..1..1..1..0. .0..0..0..0..0..0
..0..0..0..0..0..0. .1..1..0..0..1..1. .1..1..1..1..1..1. .0..0..1..1..0..0
..1..1..0..0..1..1. .0..1..0..0..0..1. .1..1..0..0..1..0. .1..0..1..1..1..1
..1..1..0..0..1..1. .1..1..1..0..1..1. .1..1..0..0..1..1. .0..0..0..0..1..1
..0..1..1..1..1..1. .1..1..1..1..1..1. .1..1..0..0..1..1. .0..0..0..0..1..1
CROSSREFS
Cf. A298444.
Sequence in context: A098928 A139469 A103158 * A212104 A193007 A369888
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 19 2018
STATUS
approved