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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A253134 Number of length 6+2 0..n arrays with the sum of medians of adjacent triples multiplied by some arrangement of +-1 equal to zero 1
144, 3323, 32166, 184145, 764836, 2521335, 7036012, 17264207, 38381418, 78763123, 151375270, 275557605, 479126062, 800684721, 1293413658, 2028024289, 3097019402, 4620705367, 6751984484, 9681773551, 13650121504, 18950897209 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 6 of A253129

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..32

EXAMPLE

Some solutions for n=4

..2....2....1....0....2....0....0....1....1....0....1....1....0....0....0....0

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

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

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

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

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

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

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

CROSSREFS

Sequence in context: A187166 A231836 A268968 * A168371 A339056 A128989

Adjacent sequences:  A253131 A253132 A253133 * A253135 A253136 A253137

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 27 2014

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 27 14:31 EDT 2021. Contains 348278 sequences. (Running on oeis4.)