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A247723 Number of length n+3 0..5 arrays with no disjoint pairs in any consecutive four terms having the same sum 1
960, 4344, 19744, 89836, 408644, 1859736, 8465936, 38539276, 175434372, 798617096, 3635558924, 16550179186, 75341145844, 342975158260, 1561327118072, 7107632671418, 32356074089200, 147294571289114, 670529272776912 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 5 of A247726

LINKS

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

R. H. Hardin, Empirical recurrence of order 76

FORMULA

Empirical recurrence of order 76 (see link above)

EXAMPLE

Some solutions for n=4

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

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

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

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

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

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

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

CROSSREFS

Sequence in context: A137491 A179672 A158412 * A057666 A046788 A206079

Adjacent sequences:  A247720 A247721 A247722 * A247724 A247725 A247726

KEYWORD

nonn

AUTHOR

R. H. Hardin, Sep 23 2014

STATUS

approved

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Last modified October 21 20:44 EDT 2019. Contains 328315 sequences. (Running on oeis4.)