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A065136 Numbers n such that n = pi(n)*k + 1 for some k. 0
3, 9, 11, 13, 28, 34, 37, 43, 121, 336, 341, 351, 356, 361, 1081, 1087, 1135, 3060, 3074, 3081, 3088, 3095, 8409, 8425, 8441, 8457, 8465, 8473, 23527, 23536, 24301, 64541, 64581, 64591, 64601, 64611, 64651, 64661, 64691, 64701, 64711, 64721 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

COMMENTS

Solutions to Mod[n,PrimePi[n]] = 1, i.e. A065134(n) = 1.

EXAMPLE

n=28: Pi(28)=9 and 28=3*Pi(28)+1, so 28 is here; n=27 is present in A057809. A large proportion of A057809(m)+1 numbers (but not all of them) arise in this sequence. Numbers from A057809 arise in clusters [see grouping around 8450, 64650, 480900 etc.]

CROSSREFS

A000720, A065134, A057809.

Sequence in context: A101620 A174813 A116444 * A075720 A106373 A190226

Adjacent sequences:  A065133 A065134 A065135 * A065137 A065138 A065139

KEYWORD

nonn

AUTHOR

Labos E. (labos(AT)ana.sote.hu), Oct 15 2001

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Last modified February 15 12:25 EST 2012. Contains 205786 sequences.