57784

Appears in sequences

• 3-apexes of Omega: numbers k such that Omega(k-3) < Omega(k-2)< Omega(k-1) < Omega(k) > Omega(k+1) > Omega(k+2) > Omega(k+3), where Omega(m) = the number of prime factors of m, counting multiplicity.at n=13A076760
• a(n) = (n-1)*(n-2)*(n^2+9*n+12)/24.at n=33A323847