A247510 - OEIS

%I #14 Dec 23 2024 14:53:44

%S 8,4,5,2,3,1,3,5,2,4,2,1,2,3,4,1,3,1,1,2,1,2,6,3,2,3,1,1,4,2,2,0,3,1,

%T 2,2,1,3,2,0,4,0,2,0,2,5,2,1,2,2,0,3,3,2,3,1,3,0,0,1,5,0,1,1,4,3,4,1,

%U 2,2,3,2,2,1,2,3,1,3,4,2,4,1,2,1,2,4,1

%N Number of preprimes of the second kind (A247393) with the smallest prime divisor equals prime(n).

%H Vladimir Shevelev, <a href="https://web.archive.org/web/*/http://list.seqfan.eu/oldermail/seqfan/2014-September/013643.html">A classification of the positive integers over primes</a>

%Y Cf. A000040, A156759, A247393, A247394, A247509, A247511, A247606.

%K nonn

%O 1,1

%A _Vladimir Shevelev_, Sep 18 2014

%E More terms from _Peter J. C. Moses_, Sep 18 2014