OFFSET
1,1
COMMENTS
Column 5 of A252961.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 4*a(n-1) -2*a(n-2) +3*a(n-3) -37*a(n-4) +20*a(n-5) +87*a(n-6) -23*a(n-7) -8*a(n-8) -423*a(n-9) +617*a(n-10) -244*a(n-11) +70*a(n-12) -105*a(n-13) +42*a(n-14) for n>16.
EXAMPLE
Some solutions for n=2
..0..1..1..2..2..3..3....0..1..1..2..1..1..0....0..1..0..0..2..0..0
..4..4..3..3..0..0..1....3..1..3..3..1..3..3....3..3..0..3..3..0..3
..2..0..0..1..1..2..2....1..1..0..1..1..2..1....2..0..0..1..0..0..2
..1..1..4..4..3..3..0....0..1..1..0..1..1..2....0..4..0..0..1..0..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 25 2014
STATUS
approved