A248496 Number of length 7+5 0..n arrays with some three disjoint pairs in each consecutive six terms having the same sum.

22, 183, 1804, 9865, 35832, 87071, 182304, 317153, 493206, 715865, 980740, 1306771, 1688302, 2149427, 2686738, 3316625, 4024532, 4837255, 5739878, 6760847, 7917490, 9189229, 10578068, 12135239, 13841916, 15691573, 17708874, 19923189, 22305204

Offset

1,1

Comments

Row 7 of A248489

Links

R. H. Hardin, Table of n, a(n) for n = 1..111

Example

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

Crossrefs

Sequence in context: A248493 A248494 A248495 * A229367 A129126 A231749

Adjacent sequences: A248493 A248494 A248495 * A248497 A248498 A248499

Keyword

nonn

Author

R. H. Hardin, Oct 07 2014

Status

approved