query: SELECT (GROUP_CONCAT( ?nb;separator=",") as ?list)
  WITH
  {
      SELECT ?nb 
      WHERE
      { 
        ?item wdt:P31 wd:Q2301325 
        BIND( xsd:integer(strafter(str(?item),"Q")) as ?nb)
      } ORDER BY ?nb OFFSET 0 LIMIT 60           
  }   as %i
  WHERE
  {
      INCLUDE %i
  }        