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A252217 Number of (n+2)X(6+2) 0..3 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum not equal to 0 2 5 6 or 7 1
8178, 17478, 122694, 801122, 5218112, 34351865, 225314934, 1478226841, 9717153336, 63795462270, 418649646795, 2748809210565, 18049979172089, 118504214119716, 778005088796709, 5108005033209826, 33536938748133042 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 6 of A252219
LINKS
FORMULA
Empirical recurrence of order 74 (see link above)
EXAMPLE
Some solutions for n=3
..3..3..3..3..3..3..3..3....2..1..1..1..1..1..1..1....1..1..1..2..1..1..1..1
..2..3..3..2..3..3..3..3....1..1..1..1..2..1..1..1....2..1..1..1..1..1..1..1
..3..3..3..3..3..3..3..2....1..2..1..1..1..1..1..2....1..1..1..1..1..1..1..2
..3..3..3..3..3..3..3..3....1..1..1..2..1..1..1..1....1..2..1..1..1..1..1..1
..3..2..3..3..2..3..3..3....2..1..1..1..1..1..2..1....1..1..1..2..1..1..1..1
CROSSREFS
Sequence in context: A126823 A205092 A014885 * A351448 A235095 A283954
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 15 2014
STATUS
approved

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Last modified June 20 12:38 EDT 2024. Contains 373527 sequences. (Running on oeis4.)