OFFSET
1,1
COMMENTS
Table starts
..2..3...4....7.....10......15.........24.........35..........54.........83
..3..4...5...10.....14......24.........53.........70.........140........237
..4..5...8...19.....34......82........278........669........1969.......3553
..7.10..27...37....132.....552.......2277......11588.......35799.....109054
.10.13..49...85....460....2009......15611......90831......522104....2386511
.15.14..50..142...1130....6993......92681.....983289.....7075546...64616034
.24.30..89..386...6393...69732....1691066...33021579...408482271.5524873850
.35.32.115..979..22255..398128...16946464..651434319.13673101597
.54.36.182.1988..62705.1646410..117913446.8338435721
.83.67.289.5128.252760.9472037.1022475213
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..142
FORMULA
Empirical for column k:
k=1: a(n) = a(n-2) +2*a(n-3)
k=2: [order 17] for n>19
k=3: [order 76] for n>87
Empirical for row n:
n=1: a(n) = a(n-2) +2*a(n-3)
n=2: [order 17] for n>21
EXAMPLE
Some solutions for n=4 k=4
..3..2..3..2....3..2..3..2....3..2..3..2....3..2..3..3....3..2..3..3
..3..2..3..2....3..2..1..2....3..2..1..1....3..2..1..1....3..2..1..1
..2..2..0..3....2..2..0..2....2..2..3..1....2..2..2..2....2..2..3..2
..2..0..2..2....3..1..3..2....3..1..3..2....3..1..0..2....3..1..3..1
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Apr 12 2014
STATUS
approved