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A204348 Number of (n+2)X7 0..3 arrays with no 3X3 subblock having three equal diagonal elements or three equal antidiagonal elements, and new values 0..3 introduced in row major order 1
96125591660, 919046909794048, 8653701637919899728, 81625476908305470240676, 769885056390910177755092784, 7261165826937524787547644589200, 68484240207050885222667504458844900 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 5 of A204351
LINKS
EXAMPLE
Some solutions for n=3
..0..0..0..1..2..1..1....0..1..1..0..2..0..3....0..0..1..2..1..1..0
..1..2..2..3..1..2..3....0..0..2..1..1..0..2....0..1..0..3..2..1..1
..3..3..0..0..1..2..3....1..0..1..0..2..2..1....0..0..3..1..3..0..2
..1..3..1..2..3..3..1....0..3..1..0..1..0..0....1..0..3..2..0..1..0
..3..1..1..0..2..0..2....0..1..2..0..3..3..0....3..3..1..3..2..2..1
CROSSREFS
Sequence in context: A104831 A231235 A162031 * A159474 A159757 A017183
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 14 2012
STATUS
approved

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Last modified July 19 22:34 EDT 2024. Contains 374441 sequences. (Running on oeis4.)