OFFSET
1,1
EXAMPLE
98^4 + 98 - 1 = 92236913 is prime. Thus, 98 is a member of this sequence.
MATHEMATICA
Select[Range[400], PrimeQ[#^4+#-1]&] (* Harvey P. Dale, Jul 15 2020 *)
PROG
(Python)
import sympy
from sympy import isprime
{print(n) for n in range(10**3) if isprime(n**4+n-1)}
(PARI)
s=[]; for(n=1, 400, if(isprime(n^4+n-1), s=concat(s, n))); s \\ Colin Barker, Jan 31 2014
CROSSREFS
KEYWORD
nonn
AUTHOR
Derek Orr, Jan 30 2014
STATUS
approved