A225595 - OEIS

%I #11 May 15 2013 02:04:35

%S 1,1,1,1,1,1,1,1,1,1,0,1,1,1,0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,

%T 1,1,0,1,1,1,0,1,1,1,0

%N Conjectured square array T(n,k) read by antidiagonals related to the existence of rectangles of size n*k in the toothpick structure of A139250.

%C For more information see Brian's article in the Links section.

%H Brian Hayes, <a href="http://bit-player.org/2013/joshua-trees-and-toothpicks">Joshua Trees and Toothpicks</a>

%H Brian Hayes, <a href="http://bit-player.org/extras/toothpicks/toothpicks.html">The Toothpick Sequence - Bit-Player</a>

%e Array begins:

%e 1,1,1,1,0,1,1,1,0,

%e 1,1,1,1,1,1,1,1,

%e 1,1,1,1,1,1,1,

%e 1,1,1,1,1,1,

%e 0,1,1,1,0,

%e 1,1,1,1,

%e 1,1,1,

%e 1,1,

%e 0

%Y Cf. A023758, A101082, A139250, A159786, A160124-A160126, A211008, A211012, A211016-A211019.

%K nonn,tabl,more

%O 1

%A _Omar E. Pol_, May 13 2013

%E Suggested by _Brian Hayes_, Feb 08 2013