133188domain: NAppears in sequencesNumbers n such that 167*2^n-1 is prime.at n=31A050835Engel expansion of Gamma(2/3) = 1.35412.at n=12A059189E.g.f. A(x) satisfies: A(x) = x - Sum_{k>=2} p(k) * A(x)^k / k!, where p = A000041 (partition numbers).at n=6A334315