func vdc(value, base=2) {
    while (value[-1] > 0) {
        value.append(value[-1] / base -> int)
    }
    var (x, sum) = (1, 0)
    value.each { |i|
        sum += ((i % base) / (x *= base))
    }
    return sum
}
 
for base in (2..5) {
    var seq = 10.of {|i| vdc([i], base) }
    "base %d: %s\n".printf(base, seq.map{|n| "%.4f" % n}.join(', '))
}