A057932 a(n) = floor(10^(n+1)/81).
0, 1, 12, 123, 1234, 12345, 123456, 1234567, 12345679, 123456790, 1234567901, 12345679012, 123456790123, 1234567901234, 12345679012345, 123456790123456, 1234567901234567, 12345679012345679, 123456790123456790, 1234567901234567901, 12345679012345679012, 123456790123456790123
Offset: 0
Links
- Vincenzo Librandi, Table of n, a(n) for n = 0..300
- Index entries for linear recurrences with constant coefficients, signature (10,0,0,0,0,0,0,0,1,-10).
Programs
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Magma
[Floor(10^(n+1)/81): n in [1..20]]; // Vincenzo Librandi, Jul 07 2011
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Mathematica
Floor[10^(Range[0, 25] + 1)/81] (* Paolo Xausa, Jan 29 2025 *)
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PARI
a(n)=10^(n+1)\81 \\ Charles R Greathouse IV, Jul 07 2011