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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A223358 Rolling cube footprints: number of 3 X n 0..5 arrays starting with 0 where 0..5 label faces of a cube and every array movement to a horizontal or antidiagonal neighbor moves across a corresponding cube edge. 1
36, 1024, 36864, 1327104, 48365568, 1764753408, 64399343616, 2350085308416, 85760296353792, 3129600934674432, 114206719453691904, 4167679858509348864, 152088734250301390848, 5550086348122858979328, 202536095940875781144576 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 3 of A223357.

LINKS

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

FORMULA

Empirical: a(n) = 40*a(n-1) - 128*a(n-2) for n>4.

Empirical g.f.: 4*x*(9 - 104*x + 128*x^2 - 4096*x^3) / (1 - 40*x + 128*x^2). - Colin Barker, Aug 19 2018

EXAMPLE

Some solutions for n=3:

  0 1 3    0 2 1    0 2 5    0 1 3    0 1 0    0 4 2    0 1 3

  0 1 5    0 2 5    0 2 5    3 0 2    3 4 2    5 1 3    5 4 5

  0 4 3    0 4 5    1 2 4    2 1 3    2 4 5    2 4 5    0 3 0

CROSSREFS

Cf. A223357.

Sequence in context: A294162 A025419 A180802 * A184292 A225830 A000809

Adjacent sequences:  A223355 A223356 A223357 * A223359 A223360 A223361

KEYWORD

nonn

AUTHOR

R. H. Hardin, Mar 19 2013

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 May 20 21:27 EDT 2019. Contains 323426 sequences. (Running on oeis4.)