907065domain: NAppears in sequencesa(0) = 1, a(1) = 4, and a(n) = a(n-1) + a(n-2) for n >= 2.at n=27A000285Generalized Pellian with second term of 9.at n=9A048878Fibonacci sequence with initial values a(0) = 3 and a(1) = 1.at n=28A104449Values of x in the solutions to x^2 - 3xy + y^2 + 11 = 0, where 0 < x < y.at n=27A237132