773148800711domain: NAppears in sequencesPisot sequence E(3,13): a(n) = floor(a(n-1)^2/a(n-2) + 1/2).at n=18A010903Pisot sequence T(3,13), a(n) = floor( a(n-1)^2/a(n-2) ).at n=18A010920Expansion of (1-x)^2/(1-5*x+3*x^2).at n=19A095934