OFFSET
1,1
COMMENTS
Column 2 of A198596
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..200
FORMULA
Empirical: a(n) = 343*a(n-1) -35462*a(n-2) +1600122*a(n-3) -40645571*a(n-4) +910861141*a(n-5) -17933750300*a(n-6) +206474654564*a(n-7) -1545213193753*a(n-8) +17076900852639*a(n-9) -165556364104858*a(n-10) +962137513144550*a(n-11) -7685011645242867*a(n-12) +74670341906638341*a(n-13) -794587968268894728*a(n-14) +3476503360884748536*a(n-15) +14896244937868310565*a(n-16) +94927345244467186221*a(n-17) -1382857239540954431322*a(n-18) -3428119555478353721178*a(n-19) +23023301009241433661631*a(n-20) -103993688885839190013177*a(n-21) -17909669011797998197020*a(n-22) +8121316885488234137655396*a(n-23) +7629117132938757327153909*a(n-24) -120932749055429067671907363*a(n-25) -328533262499759605390931526*a(n-26) +636266388526244319231811386*a(n-27) +320900400498258107180301303*a(n-28) -523347633027360537213511521*a(n-29)
EXAMPLE
Some solutions for n=3
..0..1..0..0....0..0..0..1....0..0..1..0....0..1..0..0....0..1..0..0
..0..1..2..2....1..0..2..1....1..2..1..0....0..1..2..2....0..1..2..2
..2..2..0..0....1..2..2..2....1..2..3..3....3..2..0..1....2..2..1..1
..0..1..3..3....0..0..1..1....3..3..0..0....3..2..0..1....3..3..0..0
..0..1..2..2....3..1..2..2....2..1..1..3....0..1..2..2....2..1..3..2
..3..3..1..1....3..1..3..3....2..0..0..3....0..1..0..0....2..1..3..2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Oct 27 2011
STATUS
approved