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A247931 Number of length 4+4 0..n arrays with some disjoint pairs in every consecutive five terms having the same sum 1
256, 3649, 31092, 157589, 552708, 1551533, 3785236, 8185797, 16336592, 29964505, 51882716, 85160905, 134184772, 203205957, 298757712, 427405305, 597735952, 817776021, 1099449280, 1455028945, 1897411468, 2442220549, 3107178892 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 4 of A247927

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..70

EXAMPLE

Some solutions for n=4

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

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

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

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

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

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

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

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

CROSSREFS

Sequence in context: A185923 A185919 A259320 * A186200 A186197 A231842

Adjacent sequences:  A247928 A247929 A247930 * A247932 A247933 A247934

KEYWORD

nonn

AUTHOR

R. H. Hardin, Sep 26 2014

STATUS

approved

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Last modified July 26 16:44 EDT 2021. Contains 346294 sequences. (Running on oeis4.)