login

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

A108952
Decimal expansion of 1/delta, where delta = Feigenbaum constant.
1
2, 1, 4, 1, 6, 9, 3, 7, 7, 0, 6, 2, 3, 2, 6, 4, 9, 2, 4, 7, 8, 9, 3, 4, 8, 1, 8, 8, 9, 3, 1, 6, 1, 7, 8, 3, 4, 1, 3, 8, 0, 9, 0, 1, 5, 6, 5, 9, 0, 4, 5, 4, 4, 3, 5, 0, 0, 1, 8, 1, 4, 5, 7, 1, 9, 1, 6, 6, 7, 7, 3, 6, 1, 8, 1, 1, 3, 9, 2, 7, 9, 7, 9, 8, 7, 0, 3, 5, 3, 3, 8, 7, 1, 3, 8, 9, 8, 4, 0, 0, 6, 2, 5, 9
OFFSET
0,1
COMMENTS
In a dynamical system exhibiting period-doubling cascades,1/delta is the limiting ratio by which the nonlinear parameter's range of stable values shrinks after each successive onset of period-doubling.
EXAMPLE
1/delta=0.21416937706232649247893481889316178341380
CROSSREFS
Cf. A006890.
Sequence in context: A261605 A239093 A263453 * A088522 A252751 A199744
KEYWORD
nonn,cons
AUTHOR
Lekraj Beedassy, Jul 21 2005
EXTENSIONS
Removed leading zero and adjusted offset - R. J. Mathar, Feb 06 2009
STATUS
approved