1,1

Harry J. Smith, Table of n, a(n) for n = 1..1000

rpl[n_]:=Module[{p=Prime[n]}, n-Round[p/Log[p]]]; Array[rpl, 90] (* Harvey P. Dale, May 20 2019 *)

(PARI) { for (n=1, 1000, write("b064662.txt", n, " ", n - round( prime(n)/log(prime(n)) )) ) } \\ Harry J. Smith, Sep 21 2009

(MAGMA) [n - Round(NthPrime(n) / Log(NthPrime(n))): n in [1..100]]; // Vincenzo Librandi, May 25 2019

Cf. A064659-A064663.

Sequence in context: A334090 A179195 A238386 * A024944 A304871 A117907

Adjacent sequences: A064659 A064660 A064661 * A064663 A064664 A064665

sign

N. J. A. Sloane, Oct 10 2001

approved