OFFSET
1,1
COMMENTS
Column 5 of A222462
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..32
FORMULA
Empirical: a(n) = 10754*a(n-1) -8060499*a(n-2) +2219242223*a(n-3) -245682627864*a(n-4) +5798947687589*a(n-5) +448113231493438*a(n-6) -2763020698450992*a(n-7)
EXAMPLE
Some solutions for n=3
..0..0..4..4..1....0..0..0..1..2....0..0..4..0..1....0..0..0..3..4
..0..0..0..4..5....0..0..0..1..4....0..0..0..4..7....0..0..0..3..1
..0..0..0..2..2....0..0..0..1..5....0..0..0..1..2....0..0..0..1..2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 21 2013
STATUS
approved