299411
domain: N
Appears in sequences
- Number of nonempty subsets of {1,2,...,n} in which exactly 1/4 of the elements are <= n/3.at n=21A047196
- Number of nonempty subsets of {1,2,...,n} in which exactly 1/4 of the elements are <= (n-1)/3.at n=21A048008
- Number of nonempty subsets of {1,2,...,n} in which exactly 1/4 of the elements are <= (n+1)/3.at n=21A048041