1,1
N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
C. Pickover, Mazes for the Mind, St. Martin's Press, NY, 1992, p. 350.
Sequence in context: A163449 A127961 A127962 this_sequence A015511 A065050 A099440
Adjacent sequences: A006935 A006936 A006937 this_sequence A006939 A006940 A006941
nonn,base
N. J. A. Sloane (njas(AT)research.att.com).
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