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A247724 Number of length n+3 0..6 arrays with no disjoint pairs in any consecutive four terms having the same sum 1
1848, 10098, 55372, 303924, 1668072, 9157806, 50284864, 276119316, 1516191100, 8325624724, 45717627824, 251044886360, 1378538951008, 7569846707486, 41567645474272, 228256866284008, 1253407500305364, 6882730399010624 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 6 of A247726

LINKS

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

EXAMPLE

Some solutions for n=3

..3....1....5....3....3....1....2....5....0....3....0....5....5....4....1....2

..2....6....1....1....6....0....3....5....0....2....6....6....1....1....5....2

..3....0....6....4....5....6....0....3....4....2....3....0....0....6....2....5

..1....1....1....4....5....2....3....6....1....6....6....4....3....4....1....1

..6....4....3....6....2....5....5....6....4....1....0....6....6....2....1....1

..2....0....2....1....3....5....0....5....0....6....0....3....0....2....1....4

CROSSREFS

Sequence in context: A080395 A092003 A090783 * A236030 A237892 A326318

Adjacent sequences:  A247721 A247722 A247723 * A247725 A247726 A247727

KEYWORD

nonn

AUTHOR

R. H. Hardin, Sep 23 2014

STATUS

approved

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Last modified November 21 06:00 EST 2019. Contains 329350 sequences. (Running on oeis4.)