A013747 a(n) = 10^(3*n + 2).
100, 100000, 100000000, 100000000000, 100000000000000, 100000000000000000, 100000000000000000000, 100000000000000000000000, 100000000000000000000000000, 100000000000000000000000000000, 100000000000000000000000000000000, 100000000000000000000000000000000000
Offset: 0
Links
- Vincenzo Librandi, Table of n, a(n) for n = 0..100
- Tanya Khovanova, Recursive Sequences.
- Index entries for linear recurrences with constant coefficients, signature (1000).
Programs
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Magma
[10^(3*n+2): n in [0..15]]; // Vincenzo Librandi, Jun 26 2011
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PARI
a(n)=10^(3*n+2) \\ Charles R Greathouse IV, Jul 10 2016
Formula
From Philippe Deléham, Nov 30 2008: (Start)
a(n) = 1000*a(n-1); a(0)=100.
G.f.: 100/(1-1000*x).
a(n) = 10*A013746(n). (End)
From Elmo R. Oliveira, Jul 07 2025: (Start)
E.g.f.: 100*exp(1000*x).