Creating object in loop dynamically

I want to create many buttons in Qt within a loop.

In header file:

QVector<QPushButton> *btns;

In cpp file:

btns = new QVector<QPushButton>();
for(int i = 0; i <= 10; i++) {
    btns->append(new QPushButton(QString::number(i),this));
}

I'm getting the error:

cannot convert argument 1 from 'QPushButton *' to 'const QPushButton &'

It's probably not hard to fix it, but I am not too good with pointers. Can you help me?