A207346 - OEIS

%I #6 Mar 31 2012 12:37:16

%S 2,4,4,6,16,6,9,36,36,10,13,81,84,100,16,18,169,192,292,256,26,25,324,

%T 426,828,912,676,42,34,625,858,2190,3130,2812,1764,68,46,1156,1704,

%U 5290,9668,11230,8928,4624,110,62,2116,3330,12292,27022,41112,43260,28152

%N T(n,k)=Number of nXk 0..1 arrays avoiding 0 0 0 and 0 1 1 horizontally and 0 0 0 and 1 1 1 vertically

%C Table starts

%C ..2....4.....6......9.....13......18.......25.......34........46........62

%C ..4...16....36.....81....169.....324......625.....1156......2116......3844

%C ..6...36....84....192....426.....858.....1704.....3330......6390.....12150

%C .10..100...292....828...2190....5290....12292....27978.....62574....136978

%C .16..256...912...3130...9668...27022....71344...185624....468864...1161400

%C .26..676..2812..11230..41112..128292...388134..1134282...3225374...9002616

%C .42.1764..8928..43260.186002..684324..2367656..8000806..26057006..82907430

%C .68.4624.28152.163710.828530.3524736.13950908.53882188.199473062.720751822

%H R. H. Hardin, <a href="/A207346/b207346.txt">Table of n, a(n) for n = 1..391</a>

%e Some solutions for n=4 k=3

%e ..0..0..1....0..1..0....0..0..1....1..1..1....1..1..1....1..1..1....1..1..0

%e ..0..0..1....0..0..1....1..1..1....1..1..0....0..0..1....1..1..0....1..1..1

%e ..1..1..0....1..1..0....1..0..0....0..0..1....0..1..0....0..0..1....0..0..1

%e ..1..1..0....1..0..0....0..0..1....1..1..0....1..0..0....0..1..0....1..1..0

%Y Column 1 is A006355(n+2)

%Y Column 2 is A206981

%Y Row 1 is A171861(n+1)

%Y Row 2 is A207025

%K nonn,tabl

%O 1,1

%A _R. H. Hardin_ Feb 17 2012