1,3

a(24) > 10^5. - Robert Price, Feb 03 2014

Table of n, a(n) for n=1..23.

5^13 = 1220703131 a prime number

(PARI) is(n)=ispseudoprime(5^n+6) \\ Charles R Greathouse IV, May 22 2017

Sequence in context: A010346 A295621 A295755 * A123215 A051855 A058070

Adjacent sequences: A089139 A089140 A089141 * A089143 A089144 A089145

nonn

Herman H. Rosenfeld (herm3(AT)pacbell.net), Dec 20 2003

More terms from Ray Chandler, Dec 24 2003

a(1) = 0 added by Robert Price, Feb 03 2014

a(17)-a(23) from Robert Price, Feb 03 2014

approved