A large circular flower bed is surrounded by a camellia tree every 1 meter, and 2 celosias are planted equidistantly between every two camellia trees. It is known that a total of 151 camellia trees are planted. What is the circumference of the big flower bed in meters? ．
一个圆形大花坛，四周每隔1米种一颗茶花树，每两棵茶花树之间等距离地种2棵鸡冠花，已知共种茶花树151棵，则大花坛周长是多少米．
<gadget id="calculator">151 * 1</gadget>
<output>151</output>

<result>151</result>