A058953 Numbers k of the form k=p*2^x, with p prime and x>=0, such that tau(k)-m = A058933(k) where tau(k) is the number of divisors of k and m is 0 or 1.

2, 3, 10, 28, 176, 832, 4352, 19456, 47104, 1900544, 4063232, 77594624, 687865856, 2885681152

Offset

1,1

Comments

(p=2 => m=1); ( Conjecture: [for p>2]; if p=A040069 then m=0 else m=1. )

Links

Table of n, a(n) for n=1..14.

Crossrefs

Cf. A000005, A040069, A040070, A058933.

Sequence in context: A099435 A140453 A037169 * A160909 A004980 A034324

Adjacent sequences: A058950 A058951 A058952 * A058954 A058955 A058956

Keyword

more,nonn

Author

Naohiro Nomoto, Jan 13 2001

Extensions

Offset corrected, title clarified, and a(12)-a(13) from Sean A. Irvine, Sep 07 2022

Status

approved