OFFSET
1,5
COMMENTS
Table starts
.0........0..........1...........2............8............28............94
.0........4.........70.........400.........2128.........10512.........49352
.0.......46........985........7986........67884........519656.......3804074
.0......384......10572......135444......1887730......23075928.....270969324
.0.....2894.....104815.....2159590.....48871479.....955490042...18092139475
.0....20444.....982206....32771472...1205962480...37763465272.1154703692514
.0...138944....8921869...483655876..28906723792.1449940771656
.0...918744...79152992..6987992320.677956602812
.0..5954690..690169163.99358947608
.0.38005496.5936924514
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..84
FORMULA
Empirical for column k:
k=1: a(n) = a(n-1)
k=2: [order 8]
k=3: [order 10] for n>13
k=4: [order 32] for n>37
Empirical for row n:
n=1: a(n) = 4*a(n-1) -8*a(n-3) -4*a(n-4) for n>7
n=2: [order 8] for n>9
n=3: [order 26] for n>29
EXAMPLE
Some solutions for n=4 k=4
..0..1..0..2. .0..1..0..0. .0..1..0..2. .0..0..1..2. .0..1..0..1
..2..1..1..1. .0..2..2..1. .0..2..0..2. .1..1..1..2. .2..0..2..1
..0..0..2..1. .0..2..0..0. .1..0..1..2. .2..0..2..0. .0..1..0..2
..2..1..2..1. .0..2..1..1. .2..0..1..2. .1..1..2..0. .1..2..0..2
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Jan 26 2017
STATUS
approved