The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A309207 Continued fraction expansion of (3 tanh (3 tanh (3 tanh (...)))). 2
 2, 1, 64, 2, 1, 1, 1, 3, 4, 1, 2, 3, 1, 272213, 1, 2, 1, 16, 110, 4, 4, 4, 1, 1, 1, 4, 1, 1, 916, 21, 11, 6, 2, 2, 2, 1, 2, 16, 3, 1, 1, 2, 2, 9, 1, 2, 8, 2, 4, 3, 2, 2, 1, 9, 6, 5, 3, 1, 4, 2, 12, 17, 1, 3, 1, 3, 1, 1, 3, 1, 7, 1, 1, 2, 8, 2, 1, 1, 5, 11, 90, 1 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,1 COMMENTS This is the continued fraction expansion of the constant defined in A309211. LINKS W. M. Gosper, Material from Bill Gosper's Computers & Math talk, M.I.T., 1989, i+38+1 pages, annotated and scanned, included with the author's permission. (There are many blank pages because about half of the original pages were two-sided, half were one-sided.) MATHEMATICA ContinuedFraction[Reduce[x == 3 Tanh@x, x, Reals][[3, 2]], 33] (* Bill Gosper, Jul 30 2019 *) CROSSREFS Cf. A309208, A309211. Sequence in context: A271442 A092650 A221194 * A104024 A233472 A284596 Adjacent sequences:  A309204 A309205 A309206 * A309208 A309209 A309210 KEYWORD nonn,cofr AUTHOR N. J. A. Sloane, Jul 29 2019 EXTENSIONS More terms from Daniel Suteu, Jul 30 2019 STATUS approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified September 30 18:12 EDT 2020. Contains 337440 sequences. (Running on oeis4.)