A002795 Denominators of convergents to Lehmer's constant. (Formerly M1545 N0603)

1, 2, 5, 27, 923, 909182, 1046593950039, 1168971346319460027570137, 1730152138254248421873938035305987364739567671241

Offset

0,2

References

D. H. Lehmer, A cotangent analogue of continued fractions, Duke Math. J., 4 (1935), 323-340.

N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 (includes this sequence).

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

J. W. Wrench, Jr., personal communication.

Links

Table of n, a(n) for n=0..8.

D. H. Lehmer, A cotangent analogue of continued fractions, Duke Math. J., 4 (1935), 323-340. [Annotated scanned copy]

J. W. Wrench, Jr., Letters to N. J. A. Sloane, Feb 1974.

Crossrefs

Cf. A002794, A002795, A002665, A030125, A002065.

Sequence in context: A333120 A058182 A057438 * A208218 A208221 A208224

Adjacent sequences: A002792 A002793 A002794 * A002796 A002797 A002798

Keyword

nonn,frac

Author

N. J. A. Sloane

Status

approved