94424domain: NAppears in sequences3-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=25A076760a(n) = n*(n-3)*(n^2-7*n+14)/8.at n=29A176145