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”).

A011289
Decimal expansion of 20th root of 10.
3
1, 1, 2, 2, 0, 1, 8, 4, 5, 4, 3, 0, 1, 9, 6, 3, 4, 3, 5, 5, 9, 1, 0, 3, 8, 9, 4, 6, 4, 7, 7, 9, 0, 5, 7, 3, 6, 7, 2, 2, 3, 0, 8, 5, 0, 7, 3, 6, 0, 5, 5, 2, 9, 6, 2, 4, 4, 5, 0, 7, 4, 4, 4, 8, 1, 7, 0, 1, 0, 3, 3, 0, 2, 6, 8, 6, 2, 2, 4, 3, 5, 5, 9, 4, 2, 3, 2, 2, 4, 1, 0, 6, 9, 3, 1, 9, 0, 4, 7
OFFSET
1,3
COMMENTS
In many engineering branches, ratio of two "field" amplitudes corresponding to 1 dB power ratio. For a more detailed description, see A011279. - Stanislav Sykora, Apr 02 2012
LINKS
MATHEMATICA
RealDigits[N[10^(1/20), 200]][[1]] (* Vladimir Joseph Stephan Orlovsky, Jan 25 2012 *)
RealDigits[Surd[10, 20], 10, 120][[1]] (* Harvey P. Dale, Jul 30 2023 *)
PROG
(PARI) sqrtn(10, 20) \\ Charles R Greathouse IV, Apr 14 2014
CROSSREFS
Cf. A011279.
Sequence in context: A105929 A065600 A029583 * A288387 A225678 A141720
KEYWORD
nonn,cons
STATUS
approved