A205046 - OEIS

%I #8 Dec 04 2019 13:04:35

%S 2232,7648,7648,25108,100308,25108,97256,366378,366378,97256,364646,

%T 5111024,2587806,5111024,364646,1451748,21682734,30072178,30072178,

%U 21682734,1451748,5692570,271619224,256406852,1680705854,256406852

%N T(n,k)=Number of (n+1)X(k+1) 0..6 arrays with the permanents of all 2X2 subblocks equal and nonzero

%C Table starts

%C .....2232........7648........25108...........97256...........364646

%C .....7648......100308.......366378.........5111024.........21682734

%C ....25108......366378......2587806........30072178........256406852

%C ....97256.....5111024.....30072178......1680705854......10840272796

%C ...364646....21682734....256406852.....10840272796.....178237466160

%C ..1451748...271619224...2700120030....585016930830....6109962465816

%C ..5692570..1279810940..24602390018...4053347144228..119606241141244

%C .22899170.14597930612.249559797434.206364790136002.3639436559236942

%H R. H. Hardin, <a href="/A205046/b205046.txt">Table of n, a(n) for n = 1..83</a>

%e Some solutions for n=4 k=3

%e ..4..0..4..6....5..4..3..0....2..0..2..3....1..3..2..5....6..5..5..4

%e ..1..3..2..0....2..2..3..6....2..1..0..1....1..3..0..3....4..5..5..6

%e ..2..6..0..6....3..6..0..6....0..1..2..4....0..6..2..2....6..5..5..4

%e ..0..6..2..1....0..6..3..2....2..1..0..1....1..0..1..2....4..5..5..6

%e ..2..6..0..6....3..0..3..4....0..1..2..3....3..6..0..6....6..5..5..4

%K nonn,tabl

%O 1,1

%A _R. H. Hardin_, Jan 21 2012