A204840 T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with the permanents of all 2X2 subblocks equal and nonzero

56, 132, 132, 318, 524, 318, 804, 1616, 1616, 804, 2048, 6370, 7070, 6370, 2048, 5304, 21380, 34100, 34100, 21380, 5304, 13786, 81706, 157872, 247108, 157872, 81706, 13786, 36074, 284982, 752028, 1438706, 1438706, 752028, 284982, 36074, 94630

Offset

1,1

Comments

Table starts

....56.....132......318.......804.......2048.........5304.........13786

...132.....524.....1616......6370......21380........81706........284982

...318....1616.....7070.....34100.....157872.......752028.......3530808

...804....6370....34100....247108....1438706......9984856......60562860

..2048...21380...157872...1438706...11643054....102186340.....852866652

..5304...81706...752028...9984856..102186340...1289881302...13850148312

.13786..284982..3530808..60562860..852866652..13850148312..204749436552

.36074.1068556.16789864.410479794.7401341360.170465231268.3260124241278

Links

R. H. Hardin, Table of n, a(n) for n = 1..264

Example

Some solutions for n=4 k=3
..2..2..1..2....1..0..1..2....0..2..2..2....2..1..0..1....1..1..0..1
..1..2..2..2....2..1..0..1....2..1..1..1....0..1..2..2....1..1..2..2
..2..2..1..2....1..0..1..2....0..2..2..2....2..1..0..1....1..1..0..1
..1..2..2..2....0..1..0..1....2..2..0..2....2..0..2..2....1..1..2..2
..2..2..1..2....1..1..1..0....0..2..2..2....2..1..1..0....1..1..0..1

Crossrefs

Sequence in context: A048452 A306935 A253418 * A204833 A121736 A107937

Adjacent sequences: A204837 A204838 A204839 * A204841 A204842 A204843

Keyword

nonn,tabl

Author

R. H. Hardin, Jan 19 2012

Status

approved