PROG
(MAGMAMagma) [ 3*6^n: n in [0..19] ];
(MAGMAMagma) [ 3*6^n: n in [0..19] ];
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(PARI) a(n)=3*6^n \\ Charles R Greathouse IV, Oct 16 2015
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<a href="/index/Rec#order_01">Index entries for linear recurrences with constant coefficients</a>, signature (6).
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a(n) = 3*6^n.
nonn,easy
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Contribution from _Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), _, May 02 2010: (Start)
_Klaus Brockhaus (klaus-brockhaus(AT)t-online.de), _, Apr 04 2010
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