[go: up one dir, main page]

login

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

A223354
Rolling cube footprints: number of n X 5 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
256, 110592, 48365568, 21177040896, 9273505480704, 4060947412942848, 1778325505192230912, 778744859776908263424, 341019436981212766273536, 149335504495574154699866112, 65395371895437880547981918208
OFFSET
1,1
COMMENTS
Column 5 of A223357.
LINKS
FORMULA
Empirical: a(n) = 480*a(n-1) - 18432*a(n-2).
Empirical g.f.: 256*x*(1 - 48*x) / (1 - 480*x + 18432*x^2). - Colin Barker, Aug 19 2018
EXAMPLE
Some solutions for n=3:
0 3 0 3 4 0 3 5 2 0 0 3 1 2 1 0 3 5 3 1
0 3 0 2 5 0 3 5 1 5 0 3 0 3 4 0 3 4 3 4
0 3 5 4 5 0 3 0 1 5 0 3 4 5 3 0 3 1 0 4
CROSSREFS
Cf. A223357.
Sequence in context: A223199 A207295 A205927 * A236941 A222141 A333585
KEYWORD
nonn
AUTHOR
R. H. Hardin, Mar 19 2013
STATUS
approved