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A204840 T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with the permanents of all 2X2 subblocks equal and nonzero 9
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 (list; table; graph; refs; listen; history; text; internal format)
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

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Last modified October 20 02:35 EDT 2019. Contains 328244 sequences. (Running on oeis4.)