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A139515
Denominators of an Egyptian fraction for Pi^(-1), using only prime numbers.
2
5, 11, 37, 2677, 4634713, 2181903745507, 684230289204979551524201, 30504579964160123833007038252005864789931483751
OFFSET
0,1
COMMENTS
Good approximation up to 706 decimal digits.
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);
CROSSREFS
KEYWORD
easy,nonn,frac
AUTHOR
EXTENSIONS
Next term has 179 digits.
STATUS
approved