OFFSET
1,1
LINKS
Hugo Pfoertner, Table of n, a(n) for n = 1..12250
FORMULA
EXAMPLE
While almost all terms lie in the range between 3 and (prime(n)+1)/2, there are some notable outliers: a(31) = 921259 with prime(31)=127 (127^127+1=2^7*a(31)*C268), and a(1028)=1528928750837 with prime(1028)=8191 (8191^8191+1=2^13*a(1028)*C32039), Cx being composite with x decimal digits.
PROG
(PARI) a376432(n) = my(pp=prime(n)^prime(n)+1); forprime (p=3, oo, if(pp%p==0, return(p)))
CROSSREFS
KEYWORD
nonn
AUTHOR
Hugo Pfoertner, Sep 27 2024
STATUS
approved