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Search: id:A126357
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| A126357 |
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a(n) is the (n+1)st integer from among the positive integers which are coprime to n. |
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+0
3
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| 2, 5, 5, 9, 7, 19, 9, 17, 14, 27, 13, 37, 15, 33, 29, 33, 19, 55, 21, 51, 38, 49, 25, 73, 32, 57, 41, 67, 31, 113, 33, 65, 56, 73, 52, 109, 39, 81, 64, 101, 43, 149, 45, 97, 86, 97, 49, 145, 58, 127, 82, 113, 55, 163, 76, 131, 91, 121, 61, 227, 63, 129, 110, 129, 88, 221, 69
(list; graph; listen)
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OFFSET
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1,1
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LINKS
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Leroy Quet, Home Page (listed in lieu of email address)
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EXAMPLE
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The positive integers which are coprime to 6 are 1,5,7,11,13,17,19,23,... The 7th of these is 19, which is a(6).
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MATHEMATICA
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f[n_] := Block[{k = 0, c = n + 1}, While[c > 0, k++; While[GCD[k, n] > 1, k++ ]; c--; ]; k]; Table[f[n], {n, 67}] (*Chandler*)
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CROSSREFS
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Cf. A069213, A126356.
Sequence in context: A145420 A152781 A062553 this_sequence A070243 A050175 A059797
Adjacent sequences: A126354 A126355 A126356 this_sequence A126358 A126359 A126360
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KEYWORD
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nonn
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AUTHOR
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Leroy Quet Dec 26 2006
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EXTENSIONS
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Extended by Ray Chandler (rayjchandler(AT)sbcglobal.net), Dec 29 2006
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