0,3
Comments and examples
Cf. A056287, A058759.
Sequence in context: A103978 A073910 A115251 this_sequence A104617 A104618 A104616
Adjacent sequences: A057238 A057239 A057240 this_sequence A057242 A057243 A057244
nonn,nice,hard
Richard Schroeppel (rschroe(AT)sandia.gov), Jan 10 2001
a(5) <= 23.
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