0,1
R. K. Guy, Unsolved Problems in Number Theory, B6.
T. D. Noe, Table of n, a(n) for n = 0..600
Christophe CLAVIER, Aliquot Sequences
Paul Zimmermann, Latest information
Sequence in context: A121508 A135437 A142759 this_sequence A005953 A051372 A023099
Adjacent sequences: A014358 A014359 A014360 this_sequence A014362 A014363 A014364
nonn
Paul.Zimmermann(AT)loria.fr (Paul Zimmermann)
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