Search: id:A093717 Results 1-1 of 1 results found. %I A093717 %S A093717 1,2,3,4,6,8,10,12,15,19,27,30,32,34,43,48,51,72,88,106,906,963,1328, %T A093717 1336,1611,1664,2680,3122,3267 %N A093717 Numbers n such that 4^n+3^(n-1) is prime. %e A093717 19 is a member since 419+318 = 2388583837526729 which is a prime number. %t A093717 Do[ If[ PrimeQ[4^n + 3^(n - 1)], Print[n]], {n, 5000}] %Y A093717 Cf. A082103, A093793, A093765, A096185, A093794, A093795, A096186. %Y A093717 Sequence in context: A001972 A005705 A139542 this_sequence A002093 A067069 A100497 %Y A093717 Adjacent sequences: A093714 A093715 A093716 this_sequence A093718 A093719 A093720 %K A093717 nonn %O A093717 1,2 %A A093717 Herman H. Rosenfeld (herm3(AT)pacbell.net), May 17 2004 %E A093717 More terms from Robert G. Wilson v (rgwv(AT)rgwv.com), Jun 18 2004 Search completed in 0.001 seconds