1,2
a(n) = A007088(n) iff A000120(n) = A070939(n).
Cf. A023416.
Sequence in context: A010114 A015068 A069037 this_sequence A084472 A077489 A008903
Adjacent sequences: A084481 A084482 A084483 this_sequence A084485 A084486 A084487
nonn
Reinhard Zumkeller (reinhard.zumkeller(AT)lhsystems.com), May 27 2003
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