20 lines
457 B
Go
20 lines
457 B
Go
package main
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import "fmt"
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func main() {
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const max = 1000
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a := make([]int, max) // all zero by default
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seen := make(map[int]int)
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for n := 0; n < max-1; n++ {
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if m, ok := seen[a[n]]; ok {
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a[n+1] = n - m
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}
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seen[a[n]] = n
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}
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fmt.Println("The first ten terms of the Van Eck sequence are:")
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fmt.Println(a[:10])
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fmt.Println("\nTerms 991 to 1000 of the sequence are:")
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fmt.Println(a[990:])
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}
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