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.

A016645 Decimal expansion of log(22).

Original entry on oeis.org

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

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Examples

			3.091042453358315853479175699423305867897206988297672429339247718623967....
		

References

  • M. Abramowitz and I. A. Stegun, eds., Handbook of Mathematical Functions, National Bureau of Standards Applied Math. Series 55, 1964 (and various reprintings), p. 2.

Crossrefs

Cf. A016450 (continued fraction).

Programs

  • Mathematica
    RealDigits[Log[22],10,120][[1]] (* Harvey P. Dale, Aug 18 2014 *)
  • PARI
    default(realprecision, 20080); x=log(22); for (n=1, 20000, d=floor(x); x=(x-d)*10; write("b016645.txt", n, " ", d)); \\ Harry J. Smith, May 17 2009

Formula

Equals A016634 + A002162. - R. J. Mathar, Jul 22 2025