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Search: id:A071388
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| A071388 |
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Card[InvPhi(n)] is a prime number. |
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+0
3
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| 1, 2, 8, 10, 20, 22, 28, 30, 32, 44, 46, 48, 52, 54, 56, 58, 66, 70, 72, 78, 82, 92, 96, 102, 104, 106, 110, 116, 120, 126, 130, 132, 136, 138, 140, 148, 150, 156, 164, 166, 172, 178, 190, 196, 198, 204, 210, 212, 216, 220, 222, 226, 228, 238, 240, 250, 260, 262
(list; graph; listen)
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OFFSET
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1,2
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EXAMPLE
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InvPhi[48]={65,104,105,112,130,140,144,156,168,180,210} has 11 terms, so 48 is here.
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CROSSREFS
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Cf. A000010, A014197, A058277, A063512, A071385-A071389.
Sequence in context: A110913 A038638 A082396 this_sequence A032356 A114272 A108468
Adjacent sequences: A071385 A071386 A071387 this_sequence A071389 A071390 A071391
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KEYWORD
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nonn
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AUTHOR
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Labos E. (labos(AT)ana.sote.hu), May 23 2002
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