1,1

Table of n, a(n) for n=1..59.

A183868 := proc(n) n+floor(2*sqrt(n+1)) ; end proc: # R. J. Mathar, Feb 06 2011

Table[n+Floor[2*Sqrt[n+1]], {n, 60}] (* Harvey P. Dale, Nov 05 2013 *)

Cf. A079524.

Sequence in context: A134407 A218979 A325417 * A346232 A299542 A144724

Adjacent sequences: A183865 A183866 A183867 * A183869 A183870 A183871

nonn,easy

Clark Kimberling, Jan 07 2011

approved