OFFSET
0,1
LINKS
Rafael Jakimczuk, Numbers of the form p-1 where p is prime, July 2024. See p. 23.
EXAMPLE
0.4589374985054359613063426181...
PROG
(PARI) prodeulerrat(1-p^2/(p*(p-1)*(p^2+1)))
CROSSREFS
KEYWORD
nonn,cons
AUTHOR
Stefano Spezia, Jul 21 2024
STATUS
approved