A192685 Floor-Sqrt transform of numbers of A051286.

1, 1, 1, 2, 3, 5, 7, 12, 19, 30, 48, 76, 120, 191, 304, 483, 770, 1228, 1960, 3130, 5002, 7998, 12794, 20477, 32787, 52521, 84165, 134922, 216361, 347063, 556882, 893792, 1434893, 2304125, 3700752, 5945190, 9552745, 15352271, 24677134, 39672584, 63790535, 102586109, 165000118, 265424117

Offset: 0

Author

Emanuele Munarini, Jul 07 2011

Keywords

• nonn

Programs

Mathematica

FSFromSeries[f_,x_,n_] := Map[Floor[Sqrt[#]]&,CoefficientList[Series[f,{x,0,n}],x]]
FSFromSeries[1/Sqrt[1-2x-x^2-2x^3+x^4],x,100]

Formula

a(n) = floor(sqrt(A051286(n))).