login
This site is supported by donations to The OEIS Foundation.
Logo

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A111190 Numbers n such that floor(pi^n - e^n) is prime. 0
2, 5, 6, 73, 1547, 2714, 4937, 5212 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

COMMENTS

No more terms through 10000.

EXAMPLE

floor(pi^6 - e^6) = 557 is prime, hence 6 is a term.

MATHEMATICA

$MaxExtraPrecision = 10^6; Do[k = Floor[Pi^n - E^n]; If[PrimeQ[k], Print[n]], {n, 1, 10000}]

CROSSREFS

Sequence in context: A164805 A152918 A055877 * A176007 A009376 A025123

Adjacent sequences:  A111187 A111188 A111189 * A111191 A111192 A111193

KEYWORD

hard,nonn

AUTHOR

Ryan Propper (rpropper(AT)stanford.edu), Oct 23 2005

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
Recent Additions | More pages | Superseeker | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement .

Last modified February 16 08:57 EST 2012. Contains 205900 sequences.