84119

Appears in sequences

• Number of nonempty subsets of {1,2,...,n} in which exactly 1/6 of the elements are <= n/3.at n=21A048001
• Number of nonempty subsets of {1,2,...,n} in which exactly 1/6 of the elements are <= (n-1)/3.at n=21A048014
• Number of nonempty subsets of {1,2,...,n} in which exactly 1/6 of the elements are <= (n+1)/3.at n=21A048047
• Numbers n such that sopf(n) = sopf(n+1) - sopf(n-1), where sopf(x) = sum of the distinct prime factors of x.at n=15A076525
• Number of n X 5 0..1 arrays avoiding 0 0 0 and 1 0 1 horizontally and 0 0 1 and 1 1 0 vertically.at n=11A207302