%I #6 Nov 10 2015 11:37:44
%S 4,18,9,81,96,25,288,1024,605,64,1024,7328,14641,3600,169,3872,52441,
%T 223245,202500,21853,441,14641,422505,3404025,6444000,2825761,131712,
%U 1156,54450,3404025,59040000,205062400,189087285,39337984,795906,3025
%N T(n,k)=Number of (n+1)X(k+1) arrays of permutations of 0..(n+1)*(k+1)-1 with each element having index change +-(.,.) 0,0 0,2 or 1,0.
%C Table starts
%C .....4........18...........81...........288...........1024............3872
%C .....9........96.........1024..........7328..........52441..........422505
%C ....25.......605........14641........223245........3404025........59040000
%C ....64......3600.......202500.......6444000......205062400......7664479280
%C ...169.....21853......2825761.....189087285....12652875225...1017895774965
%C ...441....131712.....39337984....5520382336...774686906569.134248485475735
%C ..1156....795906....547981281..161423594928.47551947307264
%C ..3025...4804910...7632119044.4717876917930
%C ..7921..29017649.106302733681
%C .20736.175219200
%H R. H. Hardin, <a href="/A264207/b264207.txt">Table of n, a(n) for n = 1..71</a>
%F Empirical for column k:
%F k=1: a(n) = 2*a(n-1) +2*a(n-2) -a(n-3)
%F 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)
%F k=3: a(n) = 11*a(n-1) +44*a(n-2) -44*a(n-3) -11*a(n-4) +a(n-5)
%F k=4: [order 30]
%F k=5: [order 51]
%F Empirical for row n:
%F 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)
%F n=2: [order 92]
%e Some solutions for n=3 k=4
%e ..0..1..4..3..2....0..1..4..8..2....0..6..7..1..2....0..1..4..3..2
%e ..5..8.12.13..7...10..6..5..3..7....5..8..9..3..4....5..8..7..6..9
%e .15..6.14.11..9...15.13.12.11..9...10.16.14.11.12...15.16.14.11.12
%e .10.18.19.16.17...17.18.19.16.14...15.18.17.13.19...10.18.17.13.19
%Y Column 1 is A007598(n+2).
%Y Row 1 is A264004.
%K nonn,tabl
%O 1,1
%A _R. H. Hardin_, Nov 08 2015
|