OFFSET
1,1
COMMENTS
Table starts
....10......26.......66........170..........434..........1114............2850
....26......94......322.......1134.........3938.........13774...........48002
....66.....322.....1460.......6870........31774........148296..........688966
...170....1134.....6870......43870.......273686.......1729342........10862998
...434....3938....31774.....273686......2293928......19528726.......165147350
..1114...13774...148296....1729342.....19528726.....224879224......2569298018
..2850...48002...688966...10862998....165147350....2569298018.....39630793526
..7306..167598..3208946...68457998...1402044186...29500968894....614892766122
.18706..584610.14925572..430748742..11882217182..338055313800...9520588610288
.47930.2040206.69477150.2712658334.100805628896.3878896990174.147638975405998
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..364
FORMULA
Empirical for column k:
k=1: a(n) = a(n-1) +4*a(n-2)
k=2: a(n) = 3*a(n-1) +4*a(n-2) -8*a(n-3)
k=3: a(n) = 2*a(n-1) +18*a(n-2) -13*a(n-3) -70*a(n-4) +24*a(n-5) +64*a(n-6)
k=4: [order 9]
k=5: [order 20]
k=6: [order 36]
k=7: [order 72]
EXAMPLE
Some solutions for n=4 k=4
..0..0..1..0..0....0..0..1..1..1....0..0..0..0..1....0..1..0..0..0
..1..0..0..1..0....0..1..0..1..0....0..1..0..1..0....1..0..1..0..1
..0..0..1..1..1....1..0..1..1..1....1..1..1..0..1....0..0..0..1..1
..1..0..0..1..0....1..1..0..1..0....0..1..0..0..0....1..0..1..0..1
..0..1..0..0..1....0..1..1..0..1....0..0..1..0..1....0..1..1..1..0
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Jun 23 2015
STATUS
approved