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A137415 n for the first time IntegerPart[Sqrt[Prime[n]]] - PrimePi[n] == 1 - m for the first 20 m's, starting at m=0: n such that A000006[n]-A0000720[n]=1-m. 0
1, 2, 43, 61, 83, 103, 109, 113, 151, 167, 179, 181, 197, 199, 233, 239, 251, 263, 271, 281, 283 (list; graph; refs; listen; history; internal format)
OFFSET

1,2

FORMULA

a(m)=If[IntegerPart[Sqrt[Prime[n]]] - PrimePi[n] == 1 - m,n]

MATHEMATICA

Table[Min[Flatten[Table[If[IntegerPart[Sqrt[Prime[n]]] - PrimePi[n] == 1 - m, n, {}], {n, 1, 500}]]], {m, 0, 20}]

CROSSREFS

Cf. A000006, A000720.

Sequence in context: A069544 A085460 A139835 * A090194 A107200 A079823

Adjacent sequences:  A137412 A137413 A137414 * A137416 A137417 A137418

KEYWORD

nonn,uned,obsc

AUTHOR

Roger L. Bagula (rlbagulatftn(AT)yahoo.com), Apr 21 2008

EXTENSIONS

Definition not clear. - N. J. A. Sloane (njas(AT)research.att.com), Apr 25 2008

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Last modified February 17 13:14 EST 2012. Contains 206031 sequences.