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A251778 Number of (n+2) X (7+2) 0..3 arrays with every 3 X 3 subblock row and column sum 3 or 6 and every diagonal and antidiagonal sum not 3 or 6. 1
55766, 1317638, 9758786, 60326174, 1341002006, 10300749962, 63113882510, 1412118575318, 10829849843426, 66416445639470, 1485781706304062, 11396019453393170, 69887054317270646, 1563452949340108814 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 7 of A251779.
LINKS
FORMULA
Empirical recurrence of order 64 (see link above).
EXAMPLE
Some solutions for n=1
..1..0..2..1..0..2..1..3..2....0..3..0..3..3..0..3..0..3
..3..0..0..3..3..0..3..0..0....1..2..0..1..2..3..1..2..0
..2..3..1..2..3..1..2..3..1....2..1..3..2..1..3..2..1..0
CROSSREFS
Cf. A251779.
Sequence in context: A345636 A346349 A116206 * A203866 A205093 A206081
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 08 2014
STATUS
approved

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Last modified April 18 06:12 EDT 2024. Contains 371769 sequences. (Running on oeis4.)