Number of set partitions of [n] into exactly nine parts such that no part contains two elements with a circular distance less than three.
A261485
Number of set partitions of [n] into exactly nine parts such that no part contains two elements with a circular distance less than three.
Terms
- a(0) =1a(1) =25a(2) =385a(3) =4675a(4) =49192a(5) =470470a(6) =4205630a(7) =35771452a(8) =293015706a(9) =2331292564a(10) =18128195944a(11) =138415310170
External references
- oeis: A261485