91856domain: NAppears in sequencesPisot sequence E(5,17), a(n) = floor(a(n-1)^2 / a(n-2) + 1/2).at n=8A010914Numbers k such that 7*R_k - 6 is prime, where R_k = 11...1 is the repunit (A002275) of length k.at n=14A099419G.f. A(x,y) satisfies: A(x,y) = x*y + A(x,x*y)^2, with A(0,y) = 1.at n=63A275670