DouKaku?

class CHummingNumbers {
    def next(c:Int):Int = (BigInt(30).pow(c) % c).intValue match {
            case 0 => c
            case _ => next(c+1)
        }
    def take(n:Int,c:Int):List[Int] = n match {
            case 0 => List()
            case _ => next(c) match { case v => v::take(n-1,v+1) }
        }
    def take(n:Int):List[Int] = take(n,1)
}
object HummingNumbers {
    def main(args:Array[String]):Unit = {
        try {
            val    n:Int = args.length match {
                case 1 => args(0).toInt
                case _ => 100
            }
            println((new CHummingNumbers).take(n).mkString("\n"))
        } catch {
            case e => e.printStackTrace
        }
    }
}