cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

Showing 1-2 of 2 results.

A214070 Decimal expansion of the number whose continued fraction is 1, 2, 4, 8, 16, ...

Original entry on oeis.org

1, 4, 4, 5, 9, 3, 4, 6, 4, 0, 5, 1, 2, 2, 0, 2, 6, 6, 8, 1, 1, 9, 5, 5, 4, 3, 4, 0, 6, 8, 2, 6, 1, 7, 6, 8, 4, 2, 7, 0, 4, 0, 8, 8, 4, 5, 2, 0, 3, 4, 3, 8, 5, 0, 7, 9, 0, 3, 2, 6, 3, 5, 6, 0, 5, 0, 0, 6, 6, 1, 9, 0, 0, 6, 9, 1, 6, 2, 3, 2, 7, 7, 8, 9, 9, 7, 7, 7, 1, 6, 1, 8, 9, 0, 3, 9, 9, 2, 1, 4, 6, 2, 0, 4, 2
Offset: 1

Views

Author

Robert G. Wilson v, Aug 06 2012

Keywords

Comments

Essentially the same as A096641. - R. J. Mathar, Aug 10 2012

Examples

			1.4459346405122026681195543406826176842704088452034385079032635605006619006916...
		

Crossrefs

Programs

  • Mathematica
    RealDigits[ FromContinuedFraction[{1, 2^Range@ 19}], 10, 111][[1]]

Formula

From Amiram Eldar, Feb 08 2022: (Start)
Equals A096641 + 1.
Equals 1/A275614. (End)

A275614 Decimal expansion of number with continued fraction expansion 0, 1, 2, 4, 8, 16, 32, ... (powers of 2).

Original entry on oeis.org

6, 9, 1, 5, 9, 4, 1, 9, 2, 4, 2, 1, 9, 7, 8, 0, 8, 4, 2, 8, 2, 8, 9, 2, 8, 6, 6, 9, 2, 6, 4, 3, 0, 6, 3, 6, 8, 3, 3, 8, 0, 1, 4, 3, 6, 9, 6, 2, 9, 5, 5, 4, 7, 7, 3, 3, 3, 5, 5, 0, 7, 0, 9, 8, 9, 1, 7, 3, 2, 6, 6, 8, 9, 2, 5, 2, 7, 8, 1, 0, 1, 1, 9, 0, 7, 7, 4
Offset: 0

Views

Author

Keywords

Examples

			0.69159419242197808428289286692643...
		

Crossrefs

Programs

  • PARI
    terms=sqrtint(bitprecision(1.))+2; \\ terms needed at current precision
    t=contfracpnqn(vector(terms,i,.5<Charles R Greathouse IV, Aug 04 2016

Formula

From Amiram Eldar, Feb 08 2022: (Start)
Equals 1/A214070.
Equals 1/(1 + A096641). (End)

Extensions

Definition corrected by Jianing Song, Mar 29 2025
Showing 1-2 of 2 results.