742508domain: NAppears in sequencesNumbers k such that k and k+1 have the same sum and number of prime divisors (with repetition).at n=11A064351G.f.: A(x) = 1 + x*A(x)*A(-x) + x^2*exp( Sum_{n>=1} 2*L(n)^2*x^(2*n)/n ), where A(x) = exp(Sum_{n>=1} L(n)*x^n/n).at n=35A205566