A020960 a(n) = Sum_{k >= 1} floor(n*phi^(2-k)).

2, 6, 9, 13, 18, 21, 26, 29, 34, 38, 41, 46, 51, 55, 59, 62, 67, 72, 75, 79, 83, 88, 93, 96, 100, 105, 108, 113, 116, 122, 126, 129, 133, 139, 143, 148, 151, 155, 160, 163, 167, 171, 176, 180, 184, 188, 194, 198, 202, 205, 210, 214, 217, 222, 226

Offset

1,1

Links

Table of n, a(n) for n=1..55.

C. Kimberling, Problem 10520, Amer. Math. Mon. 103 (1996) p. 347.

Crossrefs

Cf. A001622 (phi), A020961.

Sequence in context: A184745 A113689 A190707 * A076522 A372061 A094111

Adjacent sequences: A020957 A020958 A020959 * A020961 A020962 A020963

Keyword

nonn

Author

Clark Kimberling

Extensions

Title improved and more terms from Sean A. Irvine, May 05 2019

Status

approved