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!)
A305780 Number of set partitions of [n] with alternating parity of elements and exactly six blocks. 1

%I #5 Jun 10 2018 13:30:09

%S 1,6,27,108,409,1558,5692,21328,76468,282885,999383,3656887,12772925,

%T 46306978,160408850,577077226,1987559778,7105490315,24379316121,

%U 86719101209,296819500851,1051663900480,3594472289644,12696988924724,43364647235536,152825304753761

%N Number of set partitions of [n] with alternating parity of elements and exactly six blocks.

%H Wikipedia, <a href="https://en.wikipedia.org/wiki/Partition_of_a_set">Partition of a set</a>

%Y Column k=6 of A274581.

%K nonn

%O 6,2

%A _Alois P. Heinz_, Jun 10 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 07:53 EDT 2024. Contains 371964 sequences. (Running on oeis4.)