This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A194986 #22 Jul 06 2025 10:44:29
%S A194986 1,1,2,2,3,3,3,4,4,5,5,5,6,6,7,7,7,8,8,9,9,9,10,10,11,11,12,12,12,13,
%T A194986 13,14,14,14,15,15,16,16,16,17,17,18,18,18,19,19,20,20,21,21,21,22,22,
%U A194986 23,23,23,24,24,25,25,25,26,26,27,27,27,28,28,29,29,29,30,30,31
%N A194986 a(n) = 1 + floor(n/sqrt(6)).
%H A194986 Vincenzo Librandi, <a href="/A194986/b194986.txt">Table of n, a(n) for n = 1..10000</a>
%F A194986 a(n) = 1+A172476(n). - _R. J. Mathar_, Jul 06 2025
%t A194986 p[n_]:=1+Floor[n/Sqrt[6]]
%t A194986 Table[p[n],{n,1,90}] (* A194986 *)
%o A194986 (Magma) [1+Floor(n/Sqrt(6)): n in [1..80] ]; // _Vincenzo Librandi_, Sep 10 2011
%o A194986 (PARI) a(n)=1+sqrtint(n^2\6) \\ _Charles R Greathouse IV_, Sep 02 2015
%Y A194986 Cf. A172476, A194987, A194988, A194989.
%K A194986 nonn,easy
%O A194986 1,3
%A A194986 _Clark Kimberling_, Sep 07 2011