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Search: id:A097210
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| 1, 2, 4, 8, 10, 16, 32, 44, 64, 128, 184, 218, 256, 400, 512, 752, 1024, 2048, 3040, 3392, 3748, 4096, 8192, 12224, 16384, 27904, 32768, 49024, 57856, 61064, 64594, 65536, 131072, 196352, 226304, 253808, 262144, 524288, 785920, 954368, 981520, 1048576
(list; graph; listen)
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OFFSET
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1,2
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COMMENT
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A076078(n) = the number of sets of distinct positive integers with a least common multiple of n.
All powers of 2 are in the sequence. - Robert G. Wilson v, Aug 14 2004
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MATHEMATICA
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f[n_] := Block[{d = Divisors[n]}, Plus @@ (MoebiusMu[n/d](2^DivisorSigma[0, d] - 1))]; Take[ Union[ Table[ f[n], {n, 2^20}]], 42] (from Robert G. Wilson v Aug 14 2004)
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CROSSREFS
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Cf. A076078, A097211.
Adjacent sequences: A097207 A097208 A097209 this_sequence A097211 A097212 A097213
Sequence in context: A102248 A045795 A083655 this_sequence A097214 A045579 A066363
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KEYWORD
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nonn
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AUTHOR
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Matthew Vandermast (ghodges14(AT)comcast.net), Aug 01 2004
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