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A268454

Number of length-n 0..5 arrays with no adjacent pair x,x+1 followed at any distance by x+1,x.

6, 36, 211, 1231, 7160, 41526, 240170, 1385338, 7970326, 45742764, 261899866, 1496074920, 8527336280, 48500972230, 275294704851, 1559507239653, 8817578095886, 49763675574292, 280352403988287, 1576707102660739

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

OFFSET

1,1

COMMENTS

Column 5 of A268457.

LINKS

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

R. H. Hardin, Empirical recurrence of order 51

FORMULA

Empirical recurrence of order 51 (see link above)

EXAMPLE

Some solutions for n=6

..4....1....1....0....5....2....5....4....1....4....5....3....0....4....5....0

..0....5....0....0....5....1....5....2....4....5....2....3....2....2....4....4

..3....2....0....0....5....5....4....2....0....3....4....5....3....3....0....5

..5....3....5....2....0....5....2....4....0....2....3....0....5....0....5....1

..0....4....4....3....1....1....5....4....4....1....2....4....2....2....1....1

..4....0....5....4....1....1....0....1....4....1....4....2....1....4....0....3

CROSSREFS

Cf. A268457.

Sequence in context: A392763 A358859 A357091 * A171280 A250348 A199525

Adjacent sequences: A268451 A268452 A268453 * A268455 A268456 A268457

KEYWORD

nonn

AUTHOR

R. H. Hardin, Feb 04 2016

STATUS

approved

URL: https://oeis.org/A268454

⇱ A268454 - OEIS