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A247732 Number of length 6+3 0..n arrays with no disjoint pairs in any consecutive four terms having the same sum 1
8, 1300, 25822, 282384, 1859736, 9157806, 35577396, 117045466, 335633762, 866155104, 2043994578, 4486798554, 9251159426, 18098333074, 33805948534, 60683289878, 105129360118, 176544589660, 288258130350, 459035320810 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 6 of A247726

LINKS

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

EXAMPLE

Some solutions for n=3

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

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

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

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

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

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

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

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

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

CROSSREFS

Sequence in context: A340562 A176113 A091868 * A162090 A017187 A168575

Adjacent sequences:  A247729 A247730 A247731 * A247733 A247734 A247735

KEYWORD

nonn

AUTHOR

R. H. Hardin, Sep 23 2014

STATUS

approved

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Last modified August 13 11:30 EDT 2022. Contains 356091 sequences. (Running on oeis4.)