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A251339 Number of (n+1)X(4+1) 0..3 arrays with every 2X2 subblock summing to a nonzero multiple of 3 1
13275, 189129, 3014066, 55048995, 1151715397, 27005232676, 687109914883, 18427859055437, 510268616367258, 14398478349467699, 410803016154228437, 11796821936379895236, 340059287206039260739, 9824866995580418794877 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 4 of A251343
LINKS
FORMULA
Empirical recurrence of order 41 (see link above)
EXAMPLE
Some solutions for n=2
..0..1..2..1..1....2..2..3..3..3....0..0..0..1..3....0..0..2..0..0
..2..0..3..0..1....2..0..1..2..1....3..0..3..2..3....1..2..2..2..1
..3..1..2..1..1....2..2..3..3..3....3..0..0..1..3....0..3..2..3..3
CROSSREFS
Sequence in context: A345583 A345840 A031620 * A318252 A034625 A283155
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 01 2014
STATUS
approved

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Last modified June 22 09:48 EDT 2024. Contains 373568 sequences. (Running on oeis4.)