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A247400 Number of length n+4 0..4 arrays with no disjoint pairs in any consecutive five terms having the same sum 1
760, 1544, 3200, 6752, 14456, 31240, 69976, 158392, 359320, 812952, 1829160, 4143352, 9440664, 21556600, 49120856, 111398648, 252748504, 575187704, 1311886744, 2991128696, 6801264184, 15449413384, 35134365976, 80031107576 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A247404

LINKS

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

R. H. Hardin, Empirical recurrence of order 68

FORMULA

Empirical recurrence of order 68 (see link above)

EXAMPLE

Some solutions for n=6

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

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

..0....4....4....4....0....0....4....0....0....0....0....0....4....4....0....0

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

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

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

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

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

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

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

CROSSREFS

Sequence in context: A157983 A014747 A258135 * A234892 A233879 A165629

Adjacent sequences:  A247397 A247398 A247399 * A247401 A247402 A247403

KEYWORD

nonn

AUTHOR

R. H. Hardin, Sep 16 2014

STATUS

approved

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Last modified August 12 08:33 EDT 2020. Contains 336438 sequences. (Running on oeis4.)