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A013601 a(n) = nextprime(7^n)-7^n. 6

%I #13 Aug 13 2019 13:17:46

%S 1,4,4,4,10,4,10,4,16,4,18,10,16,40,4,66,6,24,48,24,16,52,102,4,46,60,

%T 10,24,76,10,114,18,90,40,24,36,6,72,22,24,232,10,54,60,216,160,174,

%U 34,48,24,382,88,48,10,124,10,58,34,132,214,46,22,40,136

%N a(n) = nextprime(7^n)-7^n.

%H Daniel Starodubtsev, <a href="/A013601/b013601.txt">Table of n, a(n) for n = 0..1000</a>

%F a(n) = A063767(n)-7^n = A013632(7^n). - _R. J. Mathar_, Nov 28 2016

%p seq(nextprime(7^i)-7^i,i=0..100);

%o (PARI) a(n) = nextprime(7^n+1) - 7^n; \\ _Michel Marcus_, Aug 13 2019

%Y Cf. A013632, A063767.

%K nonn

%O 0,2

%A James Kilfiger (mapdn(AT)csv.warwick.ac.uk)

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Last modified April 24 00:30 EDT 2024. Contains 371917 sequences. (Running on oeis4.)