login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A213118 T(n,k)=Number of binary arrays of length n+2*k-1 with fewer than k ones in any length 2k subsequence (=less than 50% duty cycle) 11
1, 5, 1, 22, 7, 1, 93, 34, 10, 1, 386, 151, 54, 14, 1, 1586, 646, 252, 86, 19, 1, 6476, 2710, 1110, 424, 136, 26, 1, 26333, 11236, 4748, 1926, 714, 212, 36, 1, 106762, 46231, 19964, 8404, 3354, 1198, 324, 50, 1, 431910, 189214, 83024, 35836, 14946, 5842, 1996, 498 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Table starts

.1..5..22...93...386..1586...6476...26333..106762...431910...1744436...7036530

.1..7..34..151...646..2710..11236...46231..189214...771442...3136156..12720982

.1.10..54..252..1110..4748..19964...83024..342678..1406748...5751636..23443240

.1.14..86..424..1926..8404..35836..150604..626726..2589844..10646676..43594464

.1.19.136..714..3354.14946..64664..274676.1152494..4793874..19813536..81495084

.1.26.212.1198..5842.26630.116992..502492.2126238..8903350..36998056.152862180

.1.36.324.1996.10154.47448.211888..920744.3930286.16570608..69240296.287379592

.1.50.498.3292.17578.84424.383728.1688200.7272622.30880672.129768616.541108840

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..4938

EXAMPLE

Some solutions for n=3 k=4

..0....0....1....0....1....1....1....0....0....1....1....0....0....0....1....0

..1....0....1....0....1....0....0....0....0....0....0....0....0....1....0....0

..1....0....0....1....1....1....0....0....1....1....1....0....0....0....0....0

..1....0....0....0....0....0....0....1....1....1....0....1....0....0....1....1

..0....0....0....0....0....1....1....0....0....0....1....0....0....0....0....0

..0....1....0....0....0....0....1....0....1....0....0....0....1....1....0....1

..0....1....0....1....0....0....0....1....0....0....0....1....0....1....0....0

..0....0....0....1....0....0....0....0....0....0....0....0....0....0....1....0

..0....0....0....0....1....0....1....0....0....0....0....1....1....0....1....1

..1....1....1....0....0....0....0....0....0....0....1....0....1....1....0....0

CROSSREFS

Column 2 is A003269(n+7)

Column 3 is A133523(n+5)

Row 1 is A000346(n-1)

Sequence in context: A146056 A101625 A051929 * A259682 A286897 A167572

Adjacent sequences:  A213115 A213116 A213117 * A213119 A213120 A213121

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin Jun 05 2012

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified October 15 22:25 EDT 2019. Contains 328038 sequences. (Running on oeis4.)