login
A094409
Odd numbers k that divide Fibonacci(k) - 1 but not Fibonacci(k-1).
2
323, 6479, 7743, 11663, 18407, 19043, 23407, 27071, 34943, 35207, 39203, 44099, 47519, 51983, 53663, 54839, 65471, 72831, 78089, 79547, 82983, 86063, 94667, 104663, 109871, 121103, 139359, 142883, 157079, 168299, 195227, 196559
OFFSET
1,1
LINKS
MATHEMATICA
Select[Range[50000], OddQ[ # ] && Mod[Fibonacci[ # ] - 1, # ] == 0 && ! Mod[Fibonacci[ # - 1], # ] == 0 &]
CROSSREFS
KEYWORD
nonn
AUTHOR
Eric Rowland, May 01 2004
EXTENSIONS
Offset corrected by Giovanni Resta, Jul 20 2013
STATUS
approved