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.
Adjacent sequences: A006935 A006936 A006937 this_sequence A006939 A006940 A006941
Sequence in context: A163449 A127961 A127962 this_sequence A015511 A065050 A099440
nonn,base
N. J. A. Sloane (njas(AT)research.att.com).
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