foo.go

func main() {
        ps := filter(func(n int) bool { return n > 9 }, upto(Primes(), 100))
        pslice := make([]int, 0, 30)
        for p := range ps {
                pslice = append(pslice, p)
        }
        for _, cand := range summingSubsets(pslice, 600, 8) {
                fmt.Println(cand)
        }
}