OFFSET
1,1
COMMENTS
Column 2 of A236262
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 14*a(n-1) +405*a(n-2) +1830*a(n-3) -4691*a(n-4) -47998*a(n-5) -55581*a(n-6) +505153*a(n-7) +1001824*a(n-8) -3123526*a(n-9) -5008625*a(n-10) +10507909*a(n-11) +11310434*a(n-12) -17345214*a(n-13) -7739207*a(n-14) +1315249*a(n-15) +11274820*a(n-16) -7267628*a(n-17) -6244408*a(n-18) +11830548*a(n-19) +7508592*a(n-20) -544968*a(n-21) for n>23
EXAMPLE
Some solutions for n=3
..0..1..2....0..1..0....0..1..0....0..1..1....0..1..0....0..1..0....0..1..2
..0..3..1....1..2..3....2..3..1....2..1..1....2..1..1....2..2..3....2..1..3
..0..0..0....2..1..3....1..1..3....2..2..0....2..2..3....0..3..3....3..2..0
..2..0..1....3..0..3....2..2..1....1..3..1....0..2..2....0..3..3....3..3..3
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 21 2014
STATUS
approved