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!)
A318357 Number of non-isomorphic strict multiset partitions of the multiset of prime indices of n. 1

%I #4 Aug 26 2018 20:12:59

%S 1,1,1,1,1,2,1,2,1,2,1,3,1,2,2,2,1,3,1,3,2,2,1,5,1,2,2,3,1,3,1,3,2,2,

%T 2,4,1,2,2,5,1,3,1,3,3,2,1,7,1,3,2,3,1,5,2,5,2,2,1,7,1,2,3,4,2,3,1,3,

%U 2,3,1,9,1,2,3,3,2,3,1,7,2,2,1,7,2,2,2

%N Number of non-isomorphic strict multiset partitions of the multiset of prime indices of n.

%e Non-isomorphic representatives of the a(48) = 7 strict multiset partitions of {1,1,1,1,2}:

%e {{1,1,1,1,2}}

%e {{1},{1,1,1,2}}

%e {{2},{1,1,1,1}}

%e {{1,1},{1,1,2}}

%e {{1,2},{1,1,1}}

%e {{1},{2},{1,1,1}}

%e {{1},{1,1},{1,2}}

%Y Cf. A001055, A007716, A045778, A056239, A112798, A316980, A317533, A317776, A317791, A318287.

%K nonn

%O 1,6

%A _Gus Wiseman_, Aug 24 2018

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 April 25 03:15 EDT 2024. Contains 371964 sequences. (Running on oeis4.)