OFFSET
1,1
COMMENTS
Column 2 of A264195.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 4*a(n-1) +a(n-2) -17*a(n-4) +68*a(n-5) +17*a(n-6) +17*a(n-8) -68*a(n-9) -17*a(n-10) +a(n-12) -4*a(n-13) -a(n-14)
EXAMPLE
Some solutions for n=4
..2..1..0....2..1..0....0..1..2....7..8..2....0..1..2....0..8..2....7..8..2
..3..4..5....5.11..3....3.11..5....5.11..3....5..4..3....3..4..5....5..4..3
..8..7..6....6.14..8...13.14..8...13..0..1....6..7..8...13..7..1...13..0..1
.11.10..9....9.10..4....9.10..4....9.10..4...11.10..9...11.10..9...11.10..9
.12.13.14...12.13..7...12..6..7...12..6.14...12.13.14...14..6.12...12..6.14
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 07 2015
STATUS
approved