OFFSET
1,2
COMMENTS
Row 1 of A264313.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 2*a(n-1) +a(n-2) +2*a(n-3) +5*a(n-4) -a(n-6) -8*a(n-7) -3*a(n-8) +6*a(n-9) -a(n-10) -2*a(n-11) -a(n-12) +a(n-14)
EXAMPLE
Some solutions for n=4
..7..1..2..3..4....7..8..0..1..4....7..8..1..3..4....0..8..9..3..2
..0..6..5..8..9....5..6..2..3..9....0..5..2..6..9....5..1..6..7..4
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 11 2015
STATUS
approved