login

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

T(n,k)=Number of (n+1)X(k+1) binary arrays with consecutive windows of two bits considered as a binary number nondecreasing in every row and column
7

%I #5 Mar 31 2012 12:36:47

%S 16,25,25,36,48,36,49,82,82,49,64,129,162,129,64,81,191,289,289,191,

%T 81,100,270,478,576,478,270,100,121,368,746,1052,1052,746,368,121,144,

%U 487,1112,1796,2102,1796,1112,487,144,169,629,1597,2906,3896,3896,2906,1597

%N T(n,k)=Number of (n+1)X(k+1) binary arrays with consecutive windows of two bits considered as a binary number nondecreasing in every row and column

%C Table starts

%C ..16..25...36...49....64....81....100....121....144.....169.....196.....225

%C ..25..48...82..129...191...270....368....487....629.....796.....990....1213

%C ..36..82..162..289...478...746...1112...1597...2224....3018....4006....5217

%C ..49.129..289..576..1052..1796...2906...4501...6723....9739...13743...18958

%C ..64.191..478.1052..2102..3896...6800..11299..18020...27757...41498...60454

%C ..81.270..746.1796..3896..7790..14588..25885..43903...71658..113154..173606

%C .100.368.1112.2906..6800.14588..29174..55057..98958..170614..283766..457370

%C .121.487.1597.4501.11299.25885..55057.110112.209068..379680..663444.1120812

%C .144.629.2224.6723.18020.43903..98958.209068.418134..797812.1461254.2582064

%C .169.796.3018.9739.27757.71658.170614.379680.797812.1595622.3056874.5638936

%H R. H. Hardin, <a href="/A202335/b202335.txt">Table of n, a(n) for n = 1..10018</a>

%e Some solutions for n=5 k=3

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

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

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

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

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

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

%Y Column 1 is A000290(n+3)

%Y Column 2 is A110610(n+3)

%K nonn,tabl

%O 1,1

%A _R. H. Hardin_ Dec 17 2011