A248002 Number of length 7+5 0..n arrays with no disjoint triples in any consecutive six terms having the same sum

32, 15640, 448956, 9057366, 89060732, 716467630, 4083208500, 20012299980, 80865599600, 292391902714, 931669433584, 2735738178202, 7347771066556, 18524809954418, 43735006113588, 98221704148178, 209686764798744

Offset

1,1

Comments

Row 7 of A247995

Links

R. H. Hardin, Table of n, a(n) for n = 1..27

Example

Some solutions for n=2
..0....0....1....0....0....1....0....0....0....0....2....0....2....2....0....2
..0....2....0....2....0....2....2....2....2....1....2....0....2....2....1....0
..2....0....2....2....0....2....2....0....2....0....2....1....2....0....0....0
..2....0....2....2....0....0....2....0....1....0....2....0....1....0....2....1
..1....1....0....0....1....2....0....2....2....0....2....2....1....0....2....0
..0....0....0....1....0....2....0....2....2....2....1....0....1....1....2....2
..2....0....1....0....0....2....1....0....2....0....0....2....0....2....2....0
..2....0....2....0....0....2....2....1....0....0....0....2....2....0....1....0
..2....0....2....0....2....1....0....2....0....0....2....0....0....2....2....2
..0....0....0....0....0....0....0....0....1....1....0....0....1....2....2....1
..1....1....2....0....1....2....2....0....0....2....0....1....1....2....2....0
..0....0....0....1....2....2....0....0....0....0....0....2....1....2....0....2

Crossrefs

Sequence in context: A221254 A159384 A230689 * A091201 A121913 A016877

Adjacent sequences: A247999 A248000 A248001 * A248003 A248004 A248005

Keyword

nonn

Author

R. H. Hardin, Sep 28 2014

Status

approved