Go array range

package main

import "fmt"

func main() {

    var pow = []int{1, 2, 4, 8, 16, 32}

    for index, value := range pow {
        fmt.Printf("2**%d = %d\n", index, value)
    }
}

2**0 = 1
2**1 = 2
2**2 = 4
2**3 = 8
2**4 = 16
2**5 = 32