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

0,4

Links

Table of n, a(n) for n=0..43.

Formula

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

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]

Crossrefs

Sequence in context: A345669 A335093 A143642 * A293543 A060986 A359742

Adjacent sequences: A192682 A192683 A192684 * A192686 A192687 A192688

Keyword

nonn

Author

Emanuele Munarini, Jul 07 2011

Status

approved