The OEIS is supported by the many generous donors to the OEIS Foundation.
%I #8 Mar 28 2017 08:19:03
%S 0,0,0,1,1,1,0,1,0,0,2,0,2,2,2,1,2,1,1,2,2,0,0,3,0,3,3,3,2,3,2,2,3,3,
%T 1,3,1,1,3,3,0,1,3,2,0,3,2,1,0,3,1,0,2,3,1,2,0,1,2,3,0,2,1,3,0,0,0,1,
%U 1,1,0,1,0,0,2,0,2,2,2,1,2,1,1,2,2,0,0,3,0,3,3,3,2,3,2,2,3,3,1
%N A de Bruijn sequence B(4,3) found by Ted Bell.
%H Mark Dow, <a href="https://web.archive.org/web/20140527202958/http://lcni.uoregon.edu/~dow/Geek_art/Minimal_combinatorics/Minimal_arrays_containing_all_combinations.html">Minimal arrays containing all sub-array combinations of symbols: de Bruijn sequences and tori</a> (Web archive)
%H Wikipedia, <a href="http://en.wikipedia.org/wiki/De_Bruijn_sequence">De Bruijn Sequences</a>
%e Period 64: 0001110100202221211220030333232233131133013203210310231201230213
%Y A135472 gives an example of a B(9,2).
%Y Cf. also A080679, A058342, A083570, A166315, A166316.
%K nonn
%O 0,11
%A _N. J. A. Sloane_, Apr 09 2010, based on a communication from David Paterson (David.Paterson(AT)csiro.au)