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A247531 Number of length n+3 0..6 arrays with some disjoint pairs in every consecutive four terms having the same sum 1
553, 1033, 2009, 3997, 8051, 16683, 34695, 72269, 150677, 318575, 671847, 1413661, 2970293, 6314241, 13372035, 28225763, 59454011, 126633283, 268599173, 567619549, 1196758327, 2551010159, 5414437825, 11447235523, 24144688307 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 6 of A247533
LINKS
FORMULA
Empirical recurrence of order 82 (see link above)
EXAMPLE
Some solutions for n=6
..6....4....4....3....4....1....4....4....2....2....6....4....0....5....6....6
..4....6....5....3....3....2....6....3....2....0....5....3....3....1....0....1
..5....1....6....4....3....1....5....6....3....3....4....3....2....4....4....4
..3....3....5....4....2....2....5....1....1....5....5....4....1....2....2....3
..2....4....6....3....4....3....4....4....4....2....4....4....2....3....6....0
..4....6....5....5....5....0....4....3....2....6....5....3....3....5....4....1
..3....5....4....4....3....1....3....2....5....1....4....3....2....6....4....2
..3....5....3....4....4....4....3....5....3....5....3....2....1....2....2....3
..2....4....4....3....2....3....2....4....4....0....2....2....4....3....2....2
CROSSREFS
Sequence in context: A023914 A035849 A028686 * A171428 A045046 A276802
KEYWORD
nonn
AUTHOR
R. H. Hardin, Sep 18 2014
STATUS
approved

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Last modified May 24 23:50 EDT 2024. Contains 372782 sequences. (Running on oeis4.)