Bernstein, Leon Fundamental units and cycles in the period of real quadratic number fields. I. (English) Zbl 0335.10010 Pac. J. Math. 63, 37-61 (1976). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 2 ReviewsCited in 4 Documents MSC: 11A63 Radix representation; digital problems 11R11 Quadratic extensions 11R27 Units and factorization × Cite Format Result Cite Review PDF Full Text: DOI Online Encyclopedia of Integer Sequences: Period of continued fraction for square root of n (or 0 if n is a square). Numbers of form D^2 + 4d, with D odd, d divides D, and 1 < d < D. Squarefree numbers of form 16*k^4 + 40*k^3 + 33*k^2 + 12*k + 2, k>0.