OFFSET
1,1
COMMENTS
Table starts
..2....3.....4......5......6.......7.......8........9.......10........11
..2....3.....4......5......6.......7.......8........9.......10........11
..4....9....16.....25.....36......49......64.......81......100.......121
..4....9....22.....41.....66.....107.....158......219......304.......403
..8...39...112....275....552....1029....1728.....2781.....4200......6171
..8...43...172....505...1248....2687....5220.....9385....15868.....25539
.20..195..1064...4005..11856...29813...66256...134091...252060....446193
.18..243..1742...8193..29182...85529..217336...494943..1033716...2012883
.52.1209.11664..68855.294024.1006089.2920784..7483887.17365380..37197259
.48.1539.19976.147117.754712.3011889.9995864.28810117.74285448.175024363
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..9999
FORMULA
Empirical for row n:
n=1: a(n) = 2*a(n-1) -a(n-2)
n=2: a(n) = 2*a(n-1) -a(n-2)
n=3: a(n) = 3*a(n-1) -3*a(n-2) +a(n-3)
n=4: a(n) = 2*a(n-1) -a(n-2) +2*a(n-3) -4*a(n-4) +2*a(n-5) -a(n-6) +2*a(n-7) -a(n-8)
n=5: a(n) = 2*a(n-1) +2*a(n-2) -6*a(n-3) +6*a(n-5) -2*a(n-6) -2*a(n-7) +a(n-8)
n=6: [order 18]
n=7: [order 16]
EXAMPLE
Some solutions for n=7 k=4
..3....1....2....0....4....0....2....3....0....4....3....1....0....2....4....1
..1....4....0....0....0....1....1....0....3....0....3....3....2....1....0....3
..2....4....2....4....4....2....3....0....4....2....0....1....3....0....4....0
..3....2....4....0....1....2....4....4....3....3....2....4....1....2....4....1
..2....3....3....1....2....1....3....0....4....0....4....4....0....1....0....0
..1....3....1....0....1....0....1....3....0....1....1....3....2....2....2....0
..3....2....1....1....4....1....2....1....2....4....3....0....1....1....4....3
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Jul 12 2014
STATUS
approved