Davison, J. L. "A Series and Its Associated Continued Fraction." Proc. Amer. Math. Soc.63, 29-32, 1977.Gould, H. W.; Kim, J. B.; and Hoggatt, V. E. Jr. "Sequences Associated with t-ary Coding of Fibonacci's Rabbits." Fib. Quart.15, 311-318, 1977.Schroeder, M. Fractals, Chaos, Power Laws: Minutes from an Infinite Paradise. New York: W. H. Freeman, p. 55, 1991.Sloane, N. J. A. Sequences A005203/M1539 and A005614 in "The On-Line Encyclopedia of Integer Sequences."