OFFSET
1,1
COMMENTS
Row 6 of A252574
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 235*a(n-3) -15377*a(n-6) +231134*a(n-9) -2810947*a(n-12) +23472227*a(n-15) -127442070*a(n-18) +618426102*a(n-21) -1174418266*a(n-24) +287094995*a(n-27) +1098948151*a(n-30) -697123678*a(n-33) -202978930*a(n-36) +197586425*a(n-39) -20970000*a(n-42) for n>50
EXAMPLE
Some solutions for n=3
..0..2..0..0..1....0..2..0..0..2....1..0..0..2..0....0..2..0..0..2
..2..2..3..2..2....1..2..3..2..2....0..2..0..0..2....1..2..3..2..2
..1..0..0..2..0....2..0..0..2..0....2..2..3..1..2....2..0..0..2..0
..0..1..0..0..2....0..2..0..0..2....2..0..0..2..0....0..2..0..0..1
..2..2..3..1..1....2..2..3..2..1....0..2..0..0..2....2..2..3..2..2
..2..0..0..2..0....1..0..0..2..0....1..2..3..2..1....1..0..0..2..0
..0..2..0..0..2....1..1..0..0..2....2..0..0..2..0....0..2..0..0..1
..2..2..3..1..1....2..2..3..2..2....1..1..0..0..2....2..2..3..2..2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 18 2014
STATUS
approved