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A049283 a(n) is the smallest k such that phi(k)=n, where phi is Euler's Totient function. +0
2
1, 3, 0, 5, 0, 7, 0, 15, 0, 11, 0, 13, 0, 0, 0, 17, 0, 19, 0, 25, 0, 23, 0, 35, 0, 0, 0, 29, 0, 31, 0, 51, 0, 0, 0, 37, 0, 0, 0, 41, 0, 43, 0, 69, 0, 47, 0, 65, 0, 0, 0, 53, 0, 81, 0, 87, 0, 59, 0, 61, 0, 0, 0, 85, 0, 67, 0, 0, 0, 71, 0, 73, 0, 0, 0, 0, 0, 79, 0, 123, 0, 83, 0, 129, 0, 0, 0, 89 (list; graph; listen)
OFFSET

1,2

LINKS

T. D. Noe, Table of n, a(n) for n = 1..10000

EXAMPLE

The smallest k such that phi(k)=2 is k=3, so a(2)=3.

CROSSREFS

Cf. A000010, A014197.

Adjacent sequences: A049280 A049281 A049282 this_sequence A049284 A049285 A049286

Sequence in context: A086664 A109753 A071649 this_sequence A051704 A049689 A118657

KEYWORD

nonn

AUTHOR

Jud McCranie (j.mccranie(AT)comcast.net), Oct 10 2000

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Last modified May 16 23:01 EDT 2008. Contains 139884 sequences.


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