OFFSET
1,1
COMMENTS
Table starts
...2......4........7.........13............26..............52.............103
...4.....16.......49........169...........676............2704...........10609
...7.....49......149........585..........3639...........23977..........129481
..13....169......585.......3253.........37061..........467065.........4403641
..26....676.....3639......37061........828152........20331508.......411861253
..52...2704....23977.....467065......20331508......1002110608.....41261408089
.103..10609...129481....4403641.....411861253.....41261408089...3605017226155
.205..42025...762529...49793329....9709537177...1965295140265.349760937840517
.410.168100..4977703..628659565..246785045498.100013594816980
.820.672400.33121201.8114855785.6349411267540
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..112
FORMULA
Empirical for column k:
k=1: a(n) = 3*a(n-1) -3*a(n-2) +3*a(n-3) -2*a(n-4)
k=2: [order 8]
k=3: [order 53]
EXAMPLE
Some solutions for n=4 k=4
..0..0..1..1..1..1....0..0..0..0..0..0....0..0..1..0..1..0....1..1..0..0..1..0
..1..0..1..0..0..0....0..0..0..0..0..0....0..0..0..1..0..1....0..1..0..1..0..0
..0..0..0..1..0..1....0..1..1..0..0..1....0..0..1..0..1..0....1..1..0..0..1..0
..1..0..1..1..0..1....1..1..0..1..1..1....1..1..0..1..1..1....1..1..1..1..0..0
..0..0..1..0..1..0....0..1..1..0..0..1....0..0..0..0..0..0....0..0..0..0..0..0
..0..0..1..1..1..1....1..1..0..1..1..1....1..1..0..0..1..0....1..0..1..0..0..0
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Sep 17 2015
STATUS
approved