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A139518 Denominators of an Egyptian Fraction for phi = (1+sqrt(5))/2, using only prime numbers and allowing repetitions. 2
2, 2, 2, 11, 37, 10223, 19168273, 393878854986413, 26597184780678178240425310001, 15149418213990289905061345119914042470386161523151934159 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

COMMENTS

Good approximation up to 800 decimal digits

LINKS

Table of n, a(n) for n=0..9.

MAPLE

P:=proc(n) local a, i; a:=evalf((1+sqrt(5))/2-1, 100); for i from 1 by 1 to n do if 1/ithprime(i)<a then a:=a-1/ithprime(i); print(a); print(ithprime(i)); fi; od; end: P(100000);

CROSSREFS

Cf. A139514-A139517, A139519-A139523.

Sequence in context: A019233 A121223 A327559 * A335986 A152662 A135322

Adjacent sequences:  A139515 A139516 A139517 * A139519 A139520 A139521

KEYWORD

easy,nonn,frac

AUTHOR

Paolo P. Lava and Giorgio Balzarotti, Apr 28 2008

STATUS

approved

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Last modified September 29 18:27 EDT 2020. Contains 337432 sequences. (Running on oeis4.)