OFFSET
1,1
COMMENTS
Column 2 of A237463
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 34*a(n-3) +172*a(n-4) +254*a(n-5) +282*a(n-6) -973*a(n-7) -4066*a(n-8) -3238*a(n-9) +3634*a(n-10) +13908*a(n-11) +5602*a(n-12) -22988*a(n-13) -3264*a(n-14) +22488*a(n-15) -7392*a(n-16) -13696*a(n-17) +4608*a(n-18) +4096*a(n-19)
EXAMPLE
Some solutions for n=5
..1..1..2....1..2..1....1..1..2....2..1..1....1..2..2....1..2..1....1..1..1
..0..0..0....0..2..2....1..0..2....1..0..1....0..2..1....0..0..2....2..1..1
..2..1..1....0..1..1....2..2..2....0..2..2....0..1..1....1..1..0....0..0..0
..1..1..0....1..0..1....2..1..1....1..2..1....0..1..1....0..1..2....1..0..2
..0..1..2....2..0..1....1..1..0....0..0..2....1..1..2....2..2..2....0..2..1
..2..2..2....1..1..1....0..1..2....1..0..2....0..2..2....2..1..0....1..2..2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Feb 08 2014
STATUS
approved