A098117 a(n) = 5^(prime(n) - 1) + 5^prime(n) - 1.
29, 149, 3749, 93749, 58593749, 1464843749, 915527343749, 22888183593749, 14305114746093749, 223517417907714843749, 5587935447692871093749, 87311491370201110839843749, 54569682106375694274902343749, 1364242052659392356872558593749
Offset: 1
Keywords
Examples
a(1) = 5^(2 - 1) + (5^2 - 1) = 29.
Crossrefs
Cf. A097743.
Programs
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Magma
[5^(NthPrime(n)-1) + 5^NthPrime(n) - 1: n in [1..20]]; // Vincenzo Librandi, Aug 27 2015
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Mathematica
Table[5^(Prime[n] - 1) + (5^Prime[n] - 1), {n, 1, 15}] (* Stefan Steinerberger, Feb 28 2006 *) -
PARI
main(m)=forprime(p=2,100, print1(", ",5^(p-1) + (5^p - 1))) \\ Anders Hellström, Aug 26 2015
Formula
Extensions
More terms from Stefan Steinerberger, Feb 28 2006
a(14) from Vincenzo Librandi, Aug 27 2015