OFFSET
1,1
COMMENTS
Table starts
.....4........18...........81...........288...........1024............3872
.....9........96.........1024..........7328..........52441..........422505
....25.......605........14641........223245........3404025........59040000
....64......3600.......202500.......6444000......205062400......7664479280
...169.....21853......2825761.....189087285....12652875225...1017895774965
...441....131712.....39337984....5520382336...774686906569.134248485475735
..1156....795906....547981281..161423594928.47551947307264
..3025...4804910...7632119044.4717876917930
..7921..29017649.106302733681
.20736.175219200
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..71
FORMULA
Empirical for column k:
k=1: a(n) = 2*a(n-1) +2*a(n-2) -a(n-3)
k=2: a(n) = 3*a(n-1) +18*a(n-2) +5*a(n-3) -18*a(n-4) +3*a(n-5) +a(n-6)
k=3: a(n) = 11*a(n-1) +44*a(n-2) -44*a(n-3) -11*a(n-4) +a(n-5)
k=4: [order 30]
k=5: [order 51]
Empirical for row n:
n=1: a(n) = 4*a(n-1) -4*a(n-2) +12*a(n-3) -12*a(n-5) +4*a(n-6) -4*a(n-7) +a(n-8)
n=2: [order 92]
EXAMPLE
Some solutions for n=3 k=4
..0..1..4..3..2....0..1..4..8..2....0..6..7..1..2....0..1..4..3..2
..5..8.12.13..7...10..6..5..3..7....5..8..9..3..4....5..8..7..6..9
.15..6.14.11..9...15.13.12.11..9...10.16.14.11.12...15.16.14.11.12
.10.18.19.16.17...17.18.19.16.14...15.18.17.13.19...10.18.17.13.19
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Nov 08 2015
STATUS
approved