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A006259 Denominators of approximations to e.
(Formerly M0584)
4
1, 1, 1, 2, 3, 4, 7, 11, 18, 25, 32, 39, 71, 110, 181, 252, 323, 394, 465, 536, 1001, 1537, 2538, 3539, 4540, 5541, 6542, 7543, 8544, 9545, 18089, 27634, 45723, 63812, 81901, 99990, 118079, 136168, 154257, 172346, 190435, 208524, 398959, 607483 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,4

REFERENCES

R. L. Graham, D. E. Knuth and O. Patashnik, Concrete Mathematics. Addison-Wesley, Reading, MA, 1990, p. 122.

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=1..44.

EXAMPLE

A006258/A006259 = 1, 2, 3, 5/2, 8/3, 11/4, 19/7, 30/11, 49/18, 68/25, 87/32, 106/39, 193/71, 299/110, 492/181, ... .

CROSSREFS

Cf. A006258 (numerators). For another version see A119015.

Cf. A001113.

Sequence in context: A339484 A072164 A060987 * A119015 A222329 A018145

Adjacent sequences:  A006256 A006257 A006258 * A006260 A006261 A006262

KEYWORD

nonn,frac

AUTHOR

N. J. A. Sloane.

EXTENSIONS

More terms from Joshua Zucker, May 08 2006

Two terms removed by Alois P. Heinz, Nov 14 2021

STATUS

approved

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Last modified August 16 00:08 EDT 2022. Contains 356150 sequences. (Running on oeis4.)