147442

Appears in sequences

• a(n) = the least positive integer k such that Omega(n+k) = Omega(k)+n, where Omega(m) (A001222) denotes the number of prime factors of m, counting multiplicity.at n=13A076158
• G.f. A(x) satisfies: A(x) = x * (1 + x*A'(x)) / (1 - x*A'(x)).at n=6A301388