OFFSET
1,1
COMMENTS
Column 5 of A223269.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 448*a(n-1) -46080*a(n-2) +491520*a(n-3) +37748736*a(n-4) -637534208*a(n-5) +2147483648*a(n-6).
EXAMPLE
Some solutions for n=3:
..0..3..5..2..5....0..3..5..4..3....0..3..5..2..1....0..3..5..3..5
..0..3..5..1..5....0..3..0..4..2....0..3..1..3..4....0..3..4..3..5
..0..3..0..4..0....0..1..0..1..2....0..3..1..2..4....0..3..1..3..1
Face neighbors:
0.->.1.2.3.4
1.->.0.2.3.5
2.->.0.1.4.5
3.->.0.1.4.5
4.->.0.3.2.5
5.->.1.3.4.2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Mar 19 2013
STATUS
approved