%I #6 Nov 04 2012 11:13:26
%S 2,4,7,10,14,19,23,28,33,39,44,50,57,63,70,77,84,91,99,107,115,123,
%T 131,140,148,157,166,175,184,194,204,213,223,233,244,254,265,275,286,
%U 297,308,319,331,342,354,366,377,389,402,414,426,439,451,464,477,490,503
%N Floor of square root of sum of squares of the first n consecutive even numbers.
%t a = {}; k = 0; Do[k = k + x^2; AppendTo[a, Floor[Sqrt[k]]], {x, 2, 150, 2}]; a
%t Floor[Sqrt[#]]&/@Accumulate[Range[2,120,2]^2] (* _Harvey P. Dale_, Nov 04 2012 *)
%Y Cf. A127719, A127720, A127721, A127722.
%K nonn
%O 1,1
%A _Artur Jasinski_, Jan 25 2007
%E Definition clarified by _Harvey P. Dale_, Nov 04 2012