OFFSET
1,1
COMMENTS
Table starts
........256.......2184.......19832........170688........1499080
.......2184......21140......167960.......1390488.......11638960
......19832.....167960.....1278672......11155584......101369476
.....170688....1390488....11155584.....111242648.....1198231144
....1499080...11638960...101369476....1198231144....18209383140
...13136860...96831504...910785080...12877680064...265284773176
..114770680..805817696..8150091296..144759802024..4049733446192
.1005245456.6714115792.73102971728.1569116858248.62573461436920
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..263
FORMULA
Empirical for column k:
k=1: a(n) = 3*a(n-1) +34*a(n-2) +145*a(n-3) -18*a(n-4) -2*a(n-5) +11*a(n-6) +6*a(n-7) +2*a(n-8) +4*a(n-9) for n>10
k=2: a(n) = 3*a(n-1) +20*a(n-2) +189*a(n-3) +102*a(n-4) +187*a(n-5) -612*a(n-6) -110*a(n-7) +186*a(n-8) +82*a(n-9) +43*a(n-10) -5*a(n-11) -16*a(n-12) for n>17
k=3: a(n) = a(n-2) +695*a(n-3) +2*a(n-4) +1693*a(n-5) -1278*a(n-7) +682*a(n-9) +286*a(n-11) +32*a(n-13) for n>20
k=4: a(n) = 1307*a(n-3) +24*a(n-4) +677*a(n-5) +44*a(n-6) +256*a(n-7) for n>16
k=5: a(n) = 3457*a(n-3) +526*a(n-5) for n>14
k=6: a(n) = 9491*a(n-3) +213*a(n-5) for n>15
k=7: a(n) = 26761*a(n-3) +573*a(n-5) for n>16
EXAMPLE
Some solutions for n=4 k=3
..1..3..2..3....1..1..1..1....1..2..2..3....3..0..1..1....1..0..1..3
..2..0..1..1....1..3..2..0....3..3..0..1....3..1..1..3....1..0..0..1
..3..3..1..1....0..0..1..3....3..3..1..1....1..1..2..0....2..1..0..0
..0..3..3..2....0..0..2..3....2..1..1..0....2..3..3..0....2..0..3..3
..2..0..3..0....2..1..1..1....3..1..2..1....0..3..3..1....2..1..3..0
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin Feb 03 2012
STATUS
approved