PROG
(MAGMAMagma) [((n+1)*2^n - 1): n in [1..30]]; // Vincenzo Librandi, Sep 29 2011
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(MAGMAMagma) [((n+1)*2^n - 1): n in [1..30]]; // Vincenzo Librandi, Sep 29 2011
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<a href="/index/Rec#order_03">Index entries for linear recurrences with constant coefficients</a>, signature (5,-8,4).
LinearRecurrence[{5, -8, 4}, {0, 3, 11}, 40] (* Harvey P. Dale, Sep 15 2019 *)
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Vincenzo Librandi, <a href="/A087323/b087323_1.txt">Table of n, a(n) for n = 0..3000</a> (corrected by Ray Chandler, Jan 19 2019)
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Vincenzo Librandi, <a href="/A087323/b087323_1.txt">Table of n, a(n) for n = 10..3000</a> (corrected by Ray Chandler, Jan 19 2019)
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a(n) = (n + 1) * 2^n - 1.
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