A004940 - OEIS

A004940

a(n) = round(n*phi^5), where phi is the golden ratio, A001622.

0, 11, 22, 33, 44, 55, 67, 78, 89, 100, 111, 122, 133, 144, 155, 166, 177, 189, 200, 211, 222, 233, 244, 255, 266, 277, 288, 299, 311, 322, 333, 344, 355, 366, 377, 388, 399, 410, 421, 433, 444, 455, 466, 477

(list; graph; refs; listen; history; text; internal format)

OFFSET

0,2

LINKS

G. C. Greubel, Table of n, a(n) for n = 0..10000

MATHEMATICA

With[{c=GoldenRatio^5}, Round[c*Range[0, 50]]] (* Harvey P. Dale, Nov 28 2021 *)

PROG

(Magma) [Round(n*(11+5*Sqrt(5))/2): n in [0..80]]; // G. C. Greubel, Dec 04 2023

(SageMath) [round(golden_ratio^5*n) for n in range(81)] # G. C. Greubel, Dec 04 2023

CROSSREFS

Cf. A001622, A004939, A004941, A004942, A004943.

Sequence in context: A082275 A059544 A070022 * A367339 A065816 A178029

Adjacent sequences: A004937 A004938 A004939 * A004941 A004942 A004943

KEYWORD

nonn

AUTHOR

N. J. A. Sloane

STATUS

approved