OFFSET
1,1
COMMENTS
LINKS
M. F. Hasler, Table of n, a(n) for n = 1..4
C. Caldwell, G.L. Honaker (Eds), Prime Curios!: 78692816150593075150849.
"Jim", Topic: The Lost Proof of Fermat, on mathforum.org, Jan 31 2004
FORMULA
MATHEMATICA
Select[Table[2n^n+1, {n, 20}], PrimeQ] (* Harvey P. Dale, Mar 27 2016 *)
PROG
(PARI) for(n=1, 999, ispseudoprime(p=n^n*2+1) & print1(p", "))
CROSSREFS
KEYWORD
nonn,bref,less
AUTHOR
M. F. Hasler, Sep 02 2012
STATUS
approved