A004959 a(n) = ceiling(n*phi^4), where phi is the golden ratio, A001622.

0, 7, 14, 21, 28, 35, 42, 48, 55, 62, 69, 76, 83, 90, 96, 103, 110, 117, 124, 131, 138, 144, 151, 158, 165, 172, 179, 186, 192, 199, 206, 213, 220, 227, 234, 240, 247, 254, 261, 268, 275, 282, 288, 295, 302, 309

Offset

0,2

Links

Robert Israel, Table of n, a(n) for n = 0..10000

Formula

a(n) = A004956(3*n)+2*n. - Robert Israel, Sep 25 2019

Maple

phi:= (sqrt(5)+1)/2:
seq(ceil(3*n*phi)+2*n, n=0..100); # Robert Israel, Sep 25 2019

Mathematica

With[{c=GoldenRatio^4}, Ceiling[c*Range[0, 50]]] (* Harvey P. Dale, Oct 04 2015 *)

Crossrefs

Cf. A001622, A004956.

Sequence in context: A109048 A289398 A044892 * A020646 A182341 A008589

Adjacent sequences: A004956 A004957 A004958 * A004960 A004961 A004962

Keyword

nonn

Author

N. J. A. Sloane

Status

approved