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A139515
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Denominators of an Egyptian fraction for Pi^(-1), using only prime numbers.
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2
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OFFSET
| 0,1
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COMMENTS
| Good approximation up to 706 decimal digits.
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MAPLE
| P:=proc(n) local a, b, i, k; a:=evalf(Pi^(-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);
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CROSSREFS
| Cf. A139514, A139516-A139523.
Sequence in context: A074626 A090186 A205719 * A038708 A042719 A045717
Adjacent sequences: A139512 A139513 A139514 * A139516 A139517 A139518
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KEYWORD
| easy,nonn,frac
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AUTHOR
| Paolo P. Lava & Giorgio Balzarotti (paoloplava(AT)gmail.com), Apr 28 2008
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EXTENSIONS
| Next term has 179 digits.
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