A078179 a(n) is the smallest prime of the form n^k + n - 1 with k >= 2.
5, 11, 19, 29, 41, 349, 71, 89, 109, 131, 20747, 181, 2177953337809371149, 239, 271, 83537, 5849, 379, 419, 461, 2494357909, 279863, 599, 15649, 701, 19709, 811, 420707233300229, 929, 991
Offset: 2
Keywords
Examples
349 = A000040(70) = 7^3+7-1 and 7^2+7-1 = 5*11, therefore a(7) = 349.
Links
- Reinhard Zumkeller, Table of n, a(n) for n = 2..100
Programs
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Haskell
a078179 n = n ^ (a078178 n) + n - 1 -- Reinhard Zumkeller, Jul 16 2014
Formula
a(n) = n^A078178(n) + n - 1.
Extensions
More terms from Benoit Cloitre, Nov 20 2002
Offset corrected by Reinhard Zumkeller, Jul 16 2014