The OEIS is supported by the many generous donors to the OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A209052 Number of nX2 0..6 arrays with every element value z a city block distance of exactly z from another element value z 0
 2, 13, 115, 1468, 22738, 415695, 7893620, 136638297, 2269919266 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Column 2 of A209054 LINKS EXAMPLE Some solutions for n=5 ..2..4....4..4....2..4....4..4....0..3....4..0....1..1....5..1....4..3....1..0 ..1..2....0..0....3..3....0..0....4..2....1..3....4..4....2..1....2..3....1..1 ..1..1....1..1....2..3....2..0....2..0....1..1....1..0....2..0....3..3....1..0 ..0..1....1..1....3..0....4..4....1..3....3..4....1..1....2..0....2..4....0..1 ..0..4....4..4....3..4....2..0....1..4....0..3....4..4....2..5....3..3....1..1 CROSSREFS Sequence in context: A209174 A209718 A208958 * A209217 A000180 A215715 Adjacent sequences:  A209049 A209050 A209051 * A209053 A209054 A209055 KEYWORD nonn AUTHOR R. H. Hardin Mar 04 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 | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified June 28 21:04 EDT 2022. Contains 354907 sequences. (Running on oeis4.)