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.

A048650 Continued fraction for Sum_{m>=0} 1/(2^2^m - 1).

Original entry on oeis.org

1, 2, 2, 9, 1, 3, 5, 1, 2, 1, 1, 1, 1, 8, 2, 1, 1, 2, 1, 12, 19, 24, 1, 18, 12, 1, 2, 1, 1, 2, 2, 1, 1, 1, 1, 2, 1, 8, 1, 1, 5, 2, 5, 8, 1, 4, 2, 5, 1, 1, 8, 1, 2, 1, 1, 1, 1, 2, 2, 1, 1, 2, 1, 12, 18, 1, 7, 2, 1, 1, 2, 4, 1, 5, 4, 2, 1, 1, 1, 1, 1, 4, 64, 14, 1, 6, 3, 1, 6
Offset: 0

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Examples

			1.40393682788217832057620607413720935453...
1.403936827882178320576206074... = 1 + 1/(2 + 1/(2 + 1/(9 + 1/(1 + ...)))). - _Harry J. Smith_, May 03 2009
		

Crossrefs

Cf. A048164, A048649 (decimal expansion).

Programs

  • PARI
    { allocatemem(932245000); default(realprecision, 21000); x=suminf(m=0, 1/(2^2^m - 1)); x=contfrac(x); for (n=1, 20000, write("b048650.txt", n-1, " ", x[n])); } \\ Harry J. Smith, May 07 2009

Extensions

Deleted old PARI program. - Harry J. Smith, May 20 2009
Offset changed by Andrew Howroyd, Aug 03 2024