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”).

A263221
Number of (n+1) X (5+1) 0..2 arrays with each row and column divisible by 5, read as a base-3 number with top and left being the most significant digits.
1
13, 1920, 198892, 22342751, 3126162435, 456363243352, 66317081173996, 9651690803653879, 1408397535551222617, 205625917583136780312, 30019612862946349286716, 4382688566369987885721551
OFFSET
1,1
COMMENTS
Column 5 of A263224.
LINKS
EXAMPLE
Some solutions for n=3
..0..1..1..1..2..2....0..2..2..1..1..2....1..0..2..0..1..0....0..1..0..2..2..0
..2..0..0..2..2..0....1..0..2..0..1..0....0..2..2..0..1..1....2..1..0..0..1..0
..2..1..2..1..1..2....2..0..1..1..1..0....1..0..2..0..1..0....0..1..0..2..2..0
..1..0..2..2..0..0....0..1..0..0..1..1....0..2..2..0..1..1....2..1..0..0..1..0
CROSSREFS
Cf. A263224.
Sequence in context: A062314 A347847 A340139 * A177914 A128394 A196801
KEYWORD
nonn
AUTHOR
R. H. Hardin, Oct 12 2015
STATUS
approved