product_barcode_generator/data/ean_sequence.xml

<?xml version="1.0" encoding="utf-8"?>
<openerp>
    <data noupdate="1">
    
        <!-- Product Sequences -->
        <record id="seq_type_ean13_sequence" model="ir.sequence.type">
            <field name="name">EAN13 code</field>
            <field name="code">product.ean13.code</field>
        </record>
        <record id="seq_ean13_sequence" model="ir.sequence">
            <field name="name">Ean13 code</field>
            <field name="code">product.ean13.code</field>
            <field name="prefix">000000</field>
            <field name="padding">6</field>
            <field name="number_next">1</field>
        </record>

    </data>
</openerp>