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%I A228030 #21 Sep 08 2022 08:46:05
%S A228030 7,13,349,33232930569607,2651730845859653471779023381607
%N A228030 Primes of the form 7^n + 6.
%H A228030 Vincenzo Librandi, <a href="/A228030/b228030.txt">Table of n, a(n) for n = 1..7</a>
%t A228030 Select[Table[7^n + 6, {n, 0, 300}], PrimeQ]
%o A228030 (Magma) [a: n in [0..300] | IsPrime(a) where a is  7^n+6];
%Y A228030 Cf. A217130 (associated n).
%Y A228030 Cf. Primes of the form k^n + h: A092506 (k=2, h=1), A057733 (k=2, h=3), A123250 (k=2, h=5), A104066 (k=2, h=7), A104070 (k=2, h=9), A057735 (k=3, h=2), A102903 (k=3, h=4), A102870 (k=3, h=8), A102907 (k=3, h=10), A290200 (k=4, h=1), A182330 (k=5, h=2), A102910 (k=5, h=8), A182331 (k=6, h=1), A104118 (k=6, h=5), A104115 (k=6, h=7), A104065 (k=7, h=4), this sequence (k=7, h=6), A144360 (k=8, h=7), A145440 (k=8, h=9), A228034 (k=9, h=2), A159352 (k=10, h=3), A159031 (k=10, h=7).
%K A228030 nonn,easy
%O A228030 1,1
%A A228030 _Vincenzo Librandi_, Aug 11 2013
%E A228030 Corrected cross-references - _Robert Price_, Aug 01 2017

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