216580

Appears in sequences

• a(n) = 5*(n+1)*binomial(n+4,5)/2.at n=12A027801
• Number of nonempty subsets of {1,2,...,n} in which exactly 1/5 of the elements are <= (n+1)/3.at n=22A048043
• Number of nonempty subsets of {1,2,...,n} in which exactly 1/5 of the elements are <= (n+2)/3.at n=22A048076
• Number of nonempty subsets of {1,2,...,n} in which exactly 1/5 of the elements are <= (n+3)/3.at n=22A048087
• Degrees of irreducible representations of simple Chevalley group F4(2).at n=21A214481
• Degrees of irreducible representations of simple Chevalley group F4(2).at n=22A214481
• Least positive integer k such that 3^n-1 and k^n-1 are relatively prime.at n=47A268081
• Number of pairs of triangles that are pairwise edge-disjoint in the complete graph K_n.at n=12A381862