Calculated column in Sharepoint shema file based on ID Field is not working

I have created a calculated column Which will generate a sequence number like 1,2,3.....

I am doing this in schema.xml file.Following is my schema file.

 <Field ID = "{AF301763-E1B7-46D2-BA93-6154ED2B88B6}"
              Name="CustomCalculatedText"
              DisplayName="Calculated Text"
              Group="PST"
              Type="Calculated"
              Description="A calculated text field based on Custom Single Line of Text."
              Required="FALSE"
              ResultType="Text"
              ShowInNewForm="TRUE"
              ShowInEditForm="TRUE">
        <Formula>=[ID]</Formula>
        <FieldRefs>
          <FieldRef ID="{1d22ea11-1e32-424e-89ab-9fedbadb6ce1}" Name="ID"/>
        </FieldRefs>
      </Field>

But it is not generating the sequence number ,each case it is returning 0

Please help me for the problem.