The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A217839 T(n,k)=Number of n element 0..1 arrays with each element the minimum of k adjacent elements of a random 0..1 array of n+k-1 elements 2
 2, 2, 4, 2, 4, 8, 2, 4, 7, 16, 2, 4, 7, 12, 32, 2, 4, 7, 11, 21, 64, 2, 4, 7, 11, 17, 37, 128, 2, 4, 7, 11, 16, 27, 65, 256, 2, 4, 7, 11, 16, 23, 44, 114, 512, 2, 4, 7, 11, 16, 22, 34, 72, 200, 1024, 2, 4, 7, 11, 16, 22, 30, 52, 117, 351, 2048, 2, 4, 7, 11, 16, 22, 29, 42, 81, 189, 616 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Table starts .....2....2....2....2...2...2...2...2...2...2...2...2...2...2 .....4....4....4....4...4...4...4...4...4...4...4...4...4...4 .....8....7....7....7...7...7...7...7...7...7...7...7...7...7 ....16...12...11...11..11..11..11..11..11..11..11..11..11..11 ....32...21...17...16..16..16..16..16..16..16..16..16..16..16 ....64...37...27...23..22..22..22..22..22..22..22..22..22..22 ...128...65...44...34..30..29..29..29..29..29..29..29..29..29 ...256..114...72...52..42..38..37..37..37..37..37..37..37..37 ...512..200..117...81..61..51..47..46..46..46..46..46..46..46 ..1024..351..189..126..91..71..61..57..56..56..56..56..56..56 ..2048..616..305..194.137.102..82..72..68..67..67..67..67..67 ..4096.1081..493..296.205.149.114..94..84..80..79..79..79..79 ..8192.1897..798..450.303.218.162.127.107..97..93..92..92..92 .16384.3329.1292..685.443.316.232.176.141.121.111.107.106.106 .32768.5842.2091.1046.644.452.331.247.191.156.136.126.122.121 LINKS R. H. Hardin, Table of n, a(n) for n = 1..435 FORMULA Empirical for columns 1-7: a(n) = 2*a(n-1) -a(n-2) +a(n-k-1) EXAMPLE Some solutions for n=8 k=4 ..0....0....1....0....1....0....1....1....0....1....0....0....0....0....0....0 ..1....1....1....1....0....0....1....1....1....0....0....1....0....1....0....0 ..1....1....1....1....0....1....0....1....1....0....1....0....1....0....0....0 ..1....1....0....0....0....0....0....0....0....0....1....0....1....0....1....0 ..1....1....0....0....0....0....0....0....0....0....1....0....1....0....1....1 ..1....1....0....0....0....0....0....0....0....1....1....0....1....0....1....0 ..1....0....0....0....0....0....0....0....0....1....1....0....0....1....1....0 ..0....0....1....0....1....0....1....0....1....1....1....1....0....1....0....0 CROSSREFS Column 2 is A005251(n+3) Column 3 is A005252(n+3) Column 4 is A005253(n+3) Column 5 is A005689(n+6) Column 6 is A098574(n+6) Diagonal is A000124 Sequence in context: A219451 A097800 A183402 * A083779 A045865 A319862 Adjacent sequences:  A217836 A217837 A217838 * A217840 A217841 A217842 KEYWORD nonn,tabl AUTHOR R. H. Hardin Oct 12 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.

Last modified August 12 08:33 EDT 2020. Contains 336438 sequences. (Running on oeis4.)