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A006540 Denominators of worst case for Engel expansion.
(Formerly M2398)
0
1, 3, 5, 7, 7, 13, 19, 23, 31, 47, 61, 71, 73, 121, 121, 121, 121, 121, 121, 242, 484, 661, 661, 661, 1093, 1753, 1807, 3053, 3613, 3613, 3613, 5461, 5461, 8011, 8011, 8011, 8011, 10081, 16381 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

REFERENCES

N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).

LINKS

Table of n, a(n) for n=0..38.

P. Erdős and Jeffrey Shallit, New bounds on the length of finite Pierce and Engel series, Sem. Theor. Nombres Bordeaux (2) 3 (1991), no. 1, 43-53.

Index entries for sequences related to Engel expansions

CROSSREFS

Sequence in context: A297709 A242999 A098566 * A099726 A202664 A202124

Adjacent sequences:  A006537 A006538 A006539 * A006541 A006542 A006543

KEYWORD

nonn

AUTHOR

Jeffrey Shallit

STATUS

approved

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Last modified January 19 16:32 EST 2019. Contains 319309 sequences. (Running on oeis4.)