1,2

a(n) = 1 + A097337(n). The fractalization of A194979 is A194980.

Least number k such that k*tan(1/k) - 1 < 1/n^2. - Clark Kimberling, Dec 02 2014

Vincenzo Librandi, Table of n, a(n) for n = 1..10000

p[n_]:=1+Floor[n/Sqrt[3]]

Table[p[n], {n, 1, 90}] (* A194979 *)

(MAGMA) [1+Floor(n/Sqrt(3)): n in [1..80] ]; // Vincenzo Librandi, Sep 10 2011

(PARI) a(n)=1+sqrtint(n^2\3) \\ Charles R Greathouse IV, Sep 02 2015

Cf. A097337, A194980, A194981.

Sequence in context: A309093 A085268 A214656 * A098294 A195119 A077467

Adjacent sequences: A194976 A194977 A194978 * A194980 A194981 A194982

nonn,easy

Clark Kimberling, Sep 07 2011

approved