Code Sketch

clear()
setSpeed(superFast)

setFillColor(blue)

def septagon 
{
    forward(50)
    right(51.428)
    forward(50)
    right(51.428)
    forward(50)
    right(51.428)
    forward(50)
    right(51.428)
    forward(50)
    right(51.428)
    forward(50)
    right(51.428)
    forward(50)
    right(51.428)
}
septagon

repeat(15)
{
    right(45)
    septagon
}