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a(n) = round(n*phi^20), where phi is the golden ratio, A001622.
3

%I #19 Oct 28 2023 11:50:17

%S 0,15127,30254,45381,60508,75635,90762,105889,121016,136143,151270,

%T 166397,181524,196651,211778,226905,242032,257159,272286,287413,

%U 302540,317667,332794,347921,363048,378175,393302,408429,423556,438683,453810,468937,484064,499191,514318,529445,544572,559699

%N a(n) = round(n*phi^20), where phi is the golden ratio, A001622.

%C Not the same as A004975: a(n) != A004975(n) for n = 7564. [_Joerg Arndt_, Sep 17 2013]

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

%t With[{g20=GoldenRatio^20},Round[Range[0,40]*g20]] (* _Harvey P. Dale_, Jun 11 2017 *)

%Y Cf. A001622, A004975.

%K nonn

%O 0,2

%A _N. J. A. Sloane_