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A247410 Number of length 6+4 0..n arrays with no disjoint pairs in any consecutive five terms having the same sum 1
0, 40, 640, 31240, 369064, 2663568, 13824356, 63763868, 232965764, 789482908, 2323255280, 6264786636, 15496300072, 36144135592, 78828891640, 164177767820, 325548517308, 621195929260, 1141077450804, 2033567292132, 3511416120272 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Row 6 of A247404

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..60

EXAMPLE

Some solutions for n=4

..0....2....0....0....2....4....0....3....2....4....4....3....0....2....0....4

..0....1....1....1....4....4....0....2....1....4....0....4....4....0....4....4

..2....0....4....2....1....1....4....4....0....2....4....2....4....0....2....2

..0....0....2....4....0....4....2....0....4....3....3....4....3....0....3....4

..1....4....0....4....0....0....1....0....4....0....4....0....4....1....4....0

..0....2....4....0....2....4....0....1....2....0....4....1....2....2....0....4

..0....3....3....1....0....4....4....0....1....0....2....0....4....4....4....4

..4....0....4....4....4....2....0....2....4....2....0....0....0....4....2....3

..2....0....2....2....0....3....2....4....0....1....1....2....1....0....4....4

..3....0....4....0....3....4....3....0....4....0....0....0....4....1....1....1

CROSSREFS

Sequence in context: A057808 A269778 A229696 * A183464 A189286 A160445

Adjacent sequences:  A247407 A247408 A247409 * A247411 A247412 A247413

KEYWORD

nonn

AUTHOR

R. H. Hardin, Sep 16 2014

STATUS

approved

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Last modified September 15 14:38 EDT 2019. Contains 327078 sequences. (Running on oeis4.)