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a(n) = floor(n*phi^19), where phi is the golden ratio, A001622.
20

%I #12 Sep 12 2023 04:41:09

%S 0,9349,18698,28047,37396,46745,56094,65443,74792,84141,93490,102839,

%T 112188,121537,130886,140235,149584,158933,168282,177631,186980,

%U 196329,205678,215027,224376,233725

%N a(n) = floor(n*phi^19), where phi is the golden ratio, A001622.

%H G. C. Greubel, <a href="/A004934/b004934.txt">Table of n, a(n) for n = 0..10000</a>

%H Tanya Khovanova, <a href="http://www.tanyakhovanova.com/RecursiveSequences/NonRecursions.html">Non Recursions</a>

%t Floor[GoldenRatio^(19)*Range[0, 60]] (* _G. C. Greubel_, Sep 12 2023 *)

%o (Magma) [Floor((9349+4181*Sqrt(5))*n/2): n in [0..60]]; // _G. C. Greubel_, Sep 12 2023

%o (SageMath) [floor(golden_ratio^(19)*n) for n in range(61)] # _G. C. Greubel_, Sep 12 2023

%Y Cf. A004919, A004920, A004921, A004922, A004923, A004924, A004925.

%Y Cf. A004926, A004927, A004928, A004929, A004930, A004931, A004932.

%Y Cf. A004933, A004935, A004976, A066096, A090909.

%Y Cf. A001622.

%K nonn,easy

%O 0,2

%A _N. J. A. Sloane_