A006270 Denominators of a continued fraction for (1 + sqrt(5))/2. (Formerly M3170)

1, 3, 72, 439128, 84722519069640072, 608130213374088941214747405817720857404971722895128

Offset

0,2

References

N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).

Links

Table of n, a(n) for n=0..5.

Jeffrey Shallit, Predictable regular continued cotangent expansions, J. Res. Nat. Bur. Standards Sect. B 80B (1976), no. 2, 285-290.

Crossrefs

For numerators see A002814.

Sequence in context: A182517 A135866 A307925 * A248042 A392803 A139888

Adjacent sequences: A006267 A006268 A006269 * A006271 A006272 A006273

Keyword

nonn

Author

N. J. A. Sloane

Status

approved