OFFSET
1,1
COMMENTS
Column 4 of A214187
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..106
FORMULA
Empirical: a(n) = 4178*a(n-1) -1895863*a(n-2) +209149752*a(n-3) -7928550662*a(n-4) +84119844576*a(n-5) -298704239064*a(n-6) +219967475904*a(n-7)
EXAMPLE
Some solutions for n=4
..0..1..0..1..2....0..1..0..1..2....0..1..2..0..1....0..1..2..0..1
..1..3..4..5..4....1..2..1..0..3....1..0..1..2..3....1..3..4..1..4
..5..1..0..1..6....0..1..2..1..2....0..1..2..1..2....0..1..0..2..1
..2..4..1..4..1....1..2..3..2..3....3..4..0..5..4....1..2..3..0..2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Jul 07 2012
STATUS
approved