A247999 - OEIS

The OEIS is supported by the many generous donors to the OEIS Foundation.

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

Other ways to Give

A247999

Number of length 4+5 0..n arrays with no disjoint triples in any consecutive six terms having the same sum

32, 2314, 30404, 274204, 1530604, 7023686, 25559480, 81945184, 229627220, 589146362, 1382863372, 3045844044, 6298193672, 12410098698, 23332787356, 42249809280, 73777294628, 125023351498, 205838392504, 330697768288

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

COMMENTS

Row 4 of A247995

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..29

EXAMPLE

Some solutions for n=3

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

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

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

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

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

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

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

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

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

CROSSREFS

Sequence in context: A220730 A254458 A185968 * A222742 A077143 A198284

Adjacent sequences: A247996 A247997 A247998 * A248000 A248001 A248002

KEYWORD

nonn

AUTHOR

R. H. Hardin, Sep 28 2014

STATUS

approved