A129796 a(n) = floor(6^n/n).
6, 18, 72, 324, 1555, 7776, 39990, 209952, 1119744, 6046617, 32981550, 181398528, 1004668770, 5597440292, 31345665638, 176319369216, 995685849690, 5642219814912, 32071565263710, 182807922003148, 1044616697160850
Offset: 1
Keywords
Links
- Vincenzo Librandi, Table of n, a(n) for n = 1..300
Programs
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Magma
[Floor(6^n / n): n in [1..25]]; // Vincenzo Librandi, May 08 2011
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Mathematica
Table[Floor[6^n/n],{n,30}] (* Harvey P. Dale, Feb 20 2015 *)