aaa

\d{4}([0248][048])|([13579][26])$
<script type="text/javascript">
$( document ).ready(function() {
    $("*").click(function(){
    	$(this).css( "border", "3px solid rgb(255, 17, 17)" );

});
});
</script>

/vaklidacja
( document ).ready(function() {
    $("input").keyup(function(){
        var bank = $(this).val();
                var reg = /^[A-Z][A-Z]\d{8}\d{16}$/.test(bank);
    if (reg){
        $("span").text("Good Formatting!");
    }else
    {
        $("span").text("BAD JOB");
    }
});
});