68719476699domain: NAppears in sequencesSmallest k such that S(n) = d(n+k), where S(n) is the Kempner function (A002034) and d(n) is the number of divisors of n (A000005).at n=35A073331a(n) = 4^n - 2*n - 1.at n=17A289255Dirichlet convolution of A011782 [2^(n-1)] with A055615 (Dirichlet inverse of n).at n=36A349570