login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A309691 Total number of divisors d of m (counted with multiplicity), such that the prime signature of d is a partition of two and m runs through the set of least numbers whose prime signature is a partition of n. 2

%I #21 Aug 23 2019 08:11:09

%S 2,6,16,32,65,113,199,323,523,803,1237,1826,2696,3873,5544,7767,10859,

%T 14912,20425,27598,37156,49473,65679,86350,113179,147191,190806,

%U 245676,315415,402522,512250,648551,818831,1029139,1290151,1610701,2005969,2489167,3081434

%N Total number of divisors d of m (counted with multiplicity), such that the prime signature of d is a partition of two and m runs through the set of least numbers whose prime signature is a partition of n.

%H Alois P. Heinz, <a href="/A309691/b309691.txt">Table of n, a(n) for n = 2..7500</a>

%Y Column k=2 of A079025.

%K nonn

%O 2,1

%A _Alois P. Heinz_, Aug 23 2019

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified September 9 07:24 EDT 2024. Contains 375762 sequences. (Running on oeis4.)