16097930domain: NAppears in sequencesEngel expansion of Sum_{k>=0} 1/(8 + k)^k.at n=22A063191Solution of the complementary equation a(n) = a(n-1) + a(n-2) + b(n-2) + 1, where a(0) = 1, a(1) = 2, b(0) = 3.at n=31A294533