OFFSET
1,1
COMMENTS
Column 1 of A237936
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 1888*a(n-4) +26908*a(n-6) -301104*a(n-8) -4523964*a(n-10) +9356144*a(n-12) +158092496*a(n-14) +15024960*a(n-16) -2150807552*a(n-18) -1973442560*a(n-20) +11283515392*a(n-22) +13873016832*a(n-24) -19456245760*a(n-26) -21131821056*a(n-28) +10415243264*a(n-30) +385875968*a(n-32) -96468992*a(n-34) -16777216*a(n-36)
EXAMPLE
Some solutions for n=4
..1..0....2..2....0..3....2..2....2..1....2..1....1..0....0..2....1..1....0..2
..1..3....3..3....1..2....2..1....0..1....1..0....0..2....3..2....0..1....0..2
..2..2....2..1....3..1....2..1....2..2....0..1....1..1....0..3....2..2....3..1
..3..0....2..2....3..1....3..0....2..3....1..2....1..3....1..3....0..2....2..3
..3..2....2..0....1..2....3..1....3..2....3..2....1..2....1..3....3..1....0..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Feb 16 2014
STATUS
approved