OFFSET
1,5
COMMENTS
Table starts
...0...0....1....2....5...10...20...38...71..130...235...420...744..1308..2285
...0...4...10...20...38...68..120..208..358..612..1042..1768..2992..5052..8514
...1..10...21...42...77..136..236..404..687.1162..1959..3294..5528..9262.15497
...2..20...42...80..138..232..386..640.1062.1764..2934..4884..8134.13548.22562
...5..38...77..138..225..360..574..920.1487.2422..3971..6542.10814.17914.29713
..10..68..136..232..360..548..834.1284.2008.3188..5128..8332.13638.22436.37032
..20.120..236..386..574..834.1211.1784.2684.4128..6478.10334.16693.27208.44620
..38.208..404..640..920.1284.1784.2512.3620.5360..8152.12692.20136.32400.52660
..71.358..687.1062.1487.2008.2684.3620.4989.7078.10365.15642.24224.38290.61451
.130.612.1162.1764.2422.3188.4128.5360.7078.9604.13474.19576.29384.45340.71490
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..568
FORMULA
Empirical for column k:
k=1: a(n) = 2*a(n-1) +a(n-2) -2*a(n-3) -a(n-4)
k=2: a(n) = 3*a(n-1) -a(n-2) -3*a(n-3) +a(n-4) +a(n-5)
k=3: a(n) = 3*a(n-1) -a(n-2) -3*a(n-3) +a(n-4) +a(n-5) for n>6
k=4: a(n) = 4*a(n-1) -4*a(n-2) -2*a(n-3) +4*a(n-4) -a(n-6) for n>7
k=5: a(n) = 4*a(n-1) -4*a(n-2) -2*a(n-3) +4*a(n-4) -a(n-6) for n>7
k=6: a(n) = 4*a(n-1) -4*a(n-2) -2*a(n-3) +4*a(n-4) -a(n-6) for n>7
k=7: a(n) = 4*a(n-1) -4*a(n-2) -2*a(n-3) +4*a(n-4) -a(n-6) for n>7
EXAMPLE
Some solutions for n=4 k=4
..0..1..1..0. .0..1..0..1. .0..1..0..1. .0..1..0..0. .0..1..0..1
..0..1..0..1. .1..0..1..1. .1..0..1..0. .1..0..1..0. .0..0..1..0
..1..0..1..0. .0..1..0..0. .1..1..0..1. .0..1..0..1. .1..1..0..1
..1..0..1..0. .1..0..1..1. .1..0..1..0. .0..1..0..1. .0..0..1..0
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Jan 03 2017
STATUS
approved