OFFSET
1,1
COMMENTS
Table starts
...42.....546......3372......13500........41670........107502.........243576
...62....1272.....11436......59480.......226410........694632........1824272
...92....3000.....39072.....263212......1233820.......4497352.......13682340
..136....7116....133872....1166348......6729772......29135376......102662460
..200...16932....459276....5171484.....36721992.....188800400......770455736
..292...40326...1576148...22934730....200399588....1223547300.....5782408256
..422...95972...5407584..101700684...1093511486....7928947808....43396532796
..612..228582..18555016..450991386...5966952566...51381959992...325686928754
..900..544916..63680912.2000009808..32560374732..332972844392..2444257395164
.1328.1299898.218584848.8869712066.177677103884.2157790887982.18344026931670
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..499
FORMULA
Empirical for column k:
k=1: [linear recurrence of order 16]
Empirical for row n:
n=1: a(n) = 6*a(n-1) -14*a(n-2) +14*a(n-3) -14*a(n-5) +14*a(n-6) -6*a(n-7) +a(n-8); also polynomial of degree 6 plus a constant quasipolynomial with period 2
n=2: [order 16; also a polynomial of degree 7 plus a linear quasipolynomial with period 12]
EXAMPLE
Some solutions for n=3 k=4
..0....0....1....0....0....1....0....0....1....0....0....0....0....1....1....1
..3....2....0....3....1....3....0....3....1....2....3....0....1....1....3....2
..4....2....3....0....0....1....2....3....2....1....2....4....2....2....2....3
..2....4....3....0....2....3....2....0....0....0....2....0....3....3....1....0
..0....0....2....4....0....3....4....2....0....1....3....2....0....2....0....1
..0....1....2....2....1....2....3....0....1....0....3....1....4....4....3....3
..3....0....1....3....3....2....2....3....4....3....0....0....3....2....1....3
..2....1....0....1....2....0....2....0....4....4....0....2....0....2....3....0
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Oct 06 2014
STATUS
approved