A248451 Number of length 3+5 0..n arrays with no three disjoint pairs in any consecutive six terms having the same sum

92, 3000, 39072, 263212, 1233820, 4497352, 13682340, 36288604, 86517940, 189292652, 385999820, 742178660, 1357677856, 2379662756, 4019142092, 6571207968, 10440102864, 16169225028, 24476993264, 36299258256, 52839159000

Offset

1,1

Comments

Row 3 of A248448

Links

R. H. Hardin, Table of n, a(n) for n = 1..32

Example

Some solutions for n=3
..3....0....2....0....0....0....0....3....1....3....3....0....2....3....3....0
..1....0....0....2....1....0....0....2....2....2....1....2....0....3....1....1
..0....3....0....0....3....3....1....1....2....3....1....2....0....0....2....3
..0....2....1....3....2....1....3....1....2....2....0....0....3....3....1....1
..1....1....1....3....0....3....1....3....0....0....2....1....0....3....0....3
..3....0....1....0....2....1....3....0....2....2....3....3....3....2....3....1
..0....1....3....0....3....2....3....0....3....2....3....2....0....0....3....0
..3....0....0....1....2....1....0....0....0....1....2....0....1....0....1....0

Crossrefs

Sequence in context: A265923 A249236 A166824 * A017808 A035741 A035808

Adjacent sequences: A248448 A248449 A248450 * A248452 A248453 A248454

Keyword

nonn

Author

R. H. Hardin, Oct 06 2014

Status

approved