OFFSET
1,5
COMMENTS
Table starts
.1.....1......1........1..........1............1..............1
.1.....4......8.......24.........82..........272............908
.1.....8.....23......103........520.........2671..........13876
.1....24....103......835.......7017........60245.........522349
.1....82....520.....7017......98568......1389257.......19831472
.1...272...2671....60245....1389257.....32181958......755715475
.1...908..13876...522349...19831472....755715475....29251894460
.1..3076..72399..4542604..283040177..17729422188..1129111647895
.1.10444.378321.39567170.4045732942.416850100691.43720181502419
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..180
FORMULA
Empirical for column k:
k=1: a(n) = a(n-1)
k=2: a(n) = 4*a(n-1) -2*a(n-2) +2*a(n-3) -6*a(n-4) -4*a(n-5) for n>6
k=3: [order 15] for n>17
k=4: [order 47] for n>48
EXAMPLE
Some solutions for n=5 k=4
..0..1..0..0. .0..0..0..1. .0..1..0..0. .0..1..0..1. .0..1..1..0
..1..1..1..1. .1..1..0..0. .1..1..0..0. .0..1..0..0. .1..0..0..1
..0..0..1..0. .1..0..1..1. .0..1..0..0. .1..1..1..0. .0..0..0..0
..0..0..1..1. .0..0..0..1. .0..1..0..0. .0..0..0..1. .1..0..0..1
..1..1..1..0. .1..1..0..1. .0..1..1..1. .1..1..0..1. .1..0..1..0
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, May 12 2018
STATUS
approved