A247998 Number of length 3+5 0..n arrays with no disjoint triples in any consecutive six terms having the same sum.

32, 1264, 12612, 86736, 397988, 1514488, 4733944, 13169096, 32627776, 74644904, 158141788, 316423636, 599460740, 1087861964, 1895412312, 3194011500, 5215227944, 8292270228, 12857896052, 19510878956, 29007530052, 42361147100

Offset

1,1

Comments

Row 3 of A247995

Links

R. H. Hardin, Table of n, a(n) for n = 1..31

Example

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

Crossrefs

Sequence in context: A240892 A241107 A248072 * A208707 A038096 A278704

Adjacent sequences: A247995 A247996 A247997 * A247999 A248000 A248001

Keyword

nonn

Author

R. H. Hardin, Sep 28 2014

Status

approved