OFFSET
1,1
COMMENTS
Table starts
....4.......17..........56............172...............561...............1826
....9.......96.........623...........3736.............24908.............163505
...25......596........7949..........97332...........1333336...........17998869
...64.....3610.......97520........2407816..........68008846.........1883268032
..169....21997.....1210573.......60472721........3516298221.......200034582505
..441...133836....14973263.....1511983080......181148689096.....21168809029549
.1156...814609...185410184....37854981564.....9342273315041...2243001383143442
.3025..4957760..2295059475...947369885896...481661295203904.237592988053853489
.7921.30173957.28412159649.23712132417625.24835326206594357
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..97
FORMULA
Empirical for column k:
k=1: a(n) = 2*a(n-1) +2*a(n-2) -a(n-3)
k=2: [order 8]
k=3: [order 23]
Empirical for row n:
n=1: a(n) = 2*a(n-1) +2*a(n-2) +6*a(n-3) +2*a(n-4) -2*a(n-5) -a(n-6)
n=2: [order 46]
EXAMPLE
Some solutions for n=3 k=4
..0..3..2..8..4....2..0..1..8..3....0..3..4..2..9....0..3..1..2..4
..5..1..6..7..9....5..6..9..7..4...10..1..6..7.14...10..5..7..8..9
.10.11.12.18.14...15.11.12.18.14....5.16.17..8.19...12..6.11.13.19
.17.15.16.13.19...10.16.17.13.19...15.11.12.13.18...15.16.17.18.14
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Nov 08 2015
STATUS
approved