

A176936


Primes of the form 13^k + 10^k.


0




OFFSET

1,1


COMMENTS

No further terms up to k = 10000.  Harvey P. Dale, Jan 23 2011
If 13^k + 10^k is prime and k > 0, then k must be of the form 2^t. Because 13^k + 10^k is divisible by 13^m + 10^m, where m = A006519(k) and k > 0. Thus a(6) > 13^2^16 + 10^2^16.  Jinyuan Wang, May 31 2020


LINKS

Table of n, a(n) for n=1..5.


MATHEMATICA

Select[Table[13^n+10^n, {n, 10000}], PrimeQ] (* Harvey P. Dale, Jan 23 2011 *)


PROG

(MAGMA) [ a: n in [0..1500]  IsPrime(a) where a is 13^n+10^n ]


CROSSREFS

Cf. A176940.
Sequence in context: A083427 A083470 A064110 * A126040 A294161 A088641
Adjacent sequences: A176933 A176934 A176935 * A176937 A176938 A176939


KEYWORD

nonn


AUTHOR

Vincenzo Librandi, Apr 29 2010


STATUS

approved



