1,3

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

p[n_]:=1+Floor[n/Sqrt[6]]

Table[p[n], {n, 1, 90}] (* A194986 *)

(MAGMA) [1+Floor(n/Sqrt(6)): n in [1..80] ]; // Vincenzo Librandi, Sep 10 2011

(PARI) a(n)=1+sqrtint(n^2\6) \\ Charles R Greathouse IV, Sep 02 2015

Cf. A194987, A194988, A194989.

Sequence in context: A173276 A288156 A248515 * A302128 A054071 A028827

Adjacent sequences: A194983 A194984 A194985 * A194987 A194988 A194989

nonn

Clark Kimberling, Sep 07 2011

approved