A094986 a(n) = floor(9^n/5^n).
1, 1, 3, 5, 10, 18, 34, 61, 110, 198, 357, 642, 1156, 2082, 3748, 6746, 12143, 21859, 39346, 70823, 127482, 229468, 413042, 743477, 1338258, 2408865, 4335958, 7804725, 14048506, 25287310, 45517159, 81930887, 147475597, 265456074
Offset: 0
Links
- Vincenzo Librandi, Table of n, a(n) for n = 0..1000
Programs
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Magma
[Floor(9^n / 5^n): n in [0..40]]; // Vincenzo Librandi, Sep 08 2011
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Mathematica
Table[ Floor[(9/5)^n], {n, 0, 30}]