A247531 Number of length n+3 0..6 arrays with some disjoint pairs in every consecutive four terms having the same sum

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

Offset

1,1

Comments

Column 6 of A247533

Links

R. H. Hardin, Table of n, a(n) for n = 1..210

R. H. Hardin, Empirical recurrence of order 82

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

Adjacent sequences: A247528 A247529 A247530 * A247532 A247533 A247534

Keyword

nonn

Author

R. H. Hardin, Sep 18 2014

Status

approved