A004975 - OEIS

A004975

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

0, 15127, 30254, 45381, 60508, 75635, 90762, 105889, 121016, 136143, 151270, 166397, 181524, 196651, 211778, 226905, 242032, 257159, 272286, 287413, 302540, 317667, 332794, 347921, 363048, 378175, 393302, 408429, 423556, 438683, 453810, 468937, 484064, 499191, 514318, 529445, 544572, 559699

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OFFSET

0,2

COMMENTS

Not the same as A004955: a(n) != A004955(n) for n=7564. [Joerg Arndt, Sep 17 2013]

LINKS

Table of n, a(n) for n=0..37.

Tanya Khovanova, Non Recursions

FORMULA

a(n) >= A004955(n). [R. J. Mathar, Oct 28 2008]

MATHEMATICA

With[{c=GoldenRatio^20}, Ceiling[c*Range[0, 40]]] (* Harvey P. Dale, Jul 17 2018 *)