OFFSET
1,2
COMMENTS
Table starts
....0.......6.........40...........155..............456................1128
....6.....100.......1609.........19624...........178352.............1287838
...40....1609......57760.......2116789.........67971132..........1796061464
..155...19624....2116789.....223202074......23450120081.......2266913897519
..456..178352...67971132...23450120081....7817299555828....2573951428892959
.1128.1287838.1796061464.2266913897519.2573951428892959.2817080307689646420
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..97
FORMULA
Empirical for column k:
k=1: [polynomial of degree 7]
k=2: [polynomial of degree 31]
k=3: [polynomial of degree 127]
EXAMPLE
Some solutions for n=3 k=4
..0..0..0..3. .0..0..2..0. .0..0..2..2. .0..0..1..3. .0..0..0..1
..1..1..3..0. .0..1..0..0. .0..2..3..0. .1..3..2..1. .1..1..3..0
..0..3..3..0. .0..1..3..2. .0..3..2..1. .0..3..0..1. .0..2..2..2
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Nov 22 2016
STATUS
approved