A247539 Number of length 7+3 0..n arrays with some disjoint pairs in every consecutive four terms having the same sum

8, 217, 1732, 6495, 16932, 34695, 62108, 103013, 156308, 227701, 316236, 428111, 559992, 721175, 905784, 1123897, 1368584, 1654573, 1970964, 2330611, 2725864, 3169687, 3650720, 4190997, 4769280, 5406141, 6091708, 6842051, 7638868, 8509583

Offset

1,1

Comments

Row 7 of A247533

Links

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

Example

Some solutions for n=6
..1....4....4....6....6....1....5....1....1....2....6....4....0....2....3....3
..2....5....6....5....5....2....2....0....3....4....3....2....3....6....4....2
..1....1....3....3....4....3....3....0....4....3....5....1....1....1....2....4
..0....2....5....2....5....2....0....1....2....1....2....3....2....5....3....5
..1....4....4....4....6....3....1....1....3....2....4....4....2....2....5....1
..0....5....4....3....5....4....4....2....5....4....3....2....3....6....0....2
..1....3....3....5....4....1....3....2....6....5....1....3....1....3....2....6
..0....2....5....6....5....0....2....1....4....3....0....1....2....5....3....5
..1....0....6....4....4....3....5....3....5....2....2....2....0....4....5....3
..2....1....2....5....3....4....0....2....3....0....1....2....1....4....4....4

Crossrefs

Sequence in context: A359412 A115964 A245591 * A188680 A329304 A352471

Adjacent sequences: A247536 A247537 A247538 * A247540 A247541 A247542

Keyword

nonn

Author

R. H. Hardin, Sep 18 2014

Status

approved