A212735 Number of 0..2 arrays of length 2*n+5 with sum less than 2*n in any length 2n subsequence (=less than 50% duty cycle).

34, 1439, 23401, 280255, 2972836, 29835132, 290452176, 2775231053, 26189744683, 245006857362, 2277473995224, 21068335938696, 194166918655953, 1784115118999135, 16353838690603299, 149606998633530039

Offset

1,1

Comments

Row 6 of A212729.

Links

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

Example

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

Crossrefs

Cf. A212729.

Sequence in context: A297693 A093550 A296587 * A123790 A297636 A212033

Adjacent sequences: A212732 A212733 A212734 * A212736 A212737 A212738

Keyword

nonn

Author

R. H. Hardin May 25 2012

Status

approved