OFFSET
1,1
COMMENTS
Table starts
........396...........4356.............47916................527076
.......4356.........106596...........2543436..............60873876
......47916........2543436.........140120856............7748585676
.....527076.......60873876........7748585676.........1012872412476
....5797836.....1456391916......428652828396.......132923754354276
...63776196....34845401556....23714024087016.....17475349695161076
..701538156...833700866796..1311917257647036...2297197186864332876
.7716919716.19946896311636.72578467770478956.302046352349437619676
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..84
FORMULA
Empirical for row k:
k=1: a(n) = 36*11^n
k=2: a(n) = 21*a(n-1) +70*a(n-2)
k=3: a(n) = 61*a(n-1) -315*a(n-2) +50*a(n-3)
k=4: a(n) = 91*a(n-1) +7335*a(n-2) -264625*a(n-3) -85500*a(n-4) +10470000*a(n-5) +2475000*a(n-6) -20750000*a(n-7)
k=5: (order 12 recurrence)
EXAMPLE
Some solutions for n=4 k=3
..3..1..5..2....5..4..3..2....1..1..0..4....3..4..0..5....1..0..3..3
..0..3..1..5....1..5..4..3....5..1..1..0....2..3..4..0....3..1..0..3
..3..5..3..1....4..1..5..4....1..4..1..1....5..2..3..4....0..3..1..0
..1..3..3..3....4..4..1..5....2..1..3..1....5..5..2..3....3..2..3..1
..2..1..3..5....2..4..4..1....0..2..1..3....1..5..5..2....1..3..4..3
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin Jan 08 2012
STATUS
approved