First stages of CA for rule 617
Stage 0
 x

Stage 1
 x . x
 . . .
 x . x

Stage 2
 x x . x x
 x x x x x
 . x x x .
 x x x x x
 x x . x x

Stage 3
 x x x . x x x
 x x . . . x x
 x . x . x . x
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 x . x . x . x
 x x . . . x x
 x x x . x x x

Stage 4
 x x x x . x x x x
 x x x x x x x x x
 x x x x x x x x x
 x x x . x . x x x
 . x x x . x x x .
 x x x . x . x x x
 x x x x x x x x x
 x x x x x x x x x
 x x x x . x x x x

Stage 5
 x x x x x . x x x x x
 x x x x . . . x x x x
 x x x x x . x x x x x
 x x x x . x . x x x x
 x . x . . x . . x . x
 . . . x x . x x . . .
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 x x x x . x . x x x x
 x x x x x . x x x x x
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Stage 6
 x x x x x x . x x x x x x
 x x x x x x x x x x x x x
 x x x x . x x x . x x x x
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 x x . x x x x x x x . x x
 x x x x x . x . x x x x x
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 x x x x x . x . x x x x x
 x x . x x x x x x x . x x
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 x x x x . x x x . x x x x
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Stage 7
 x x x x x x x . x x x x x x x
 x x x x x x . . . x x x x x x
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 x x x x . . . x . . . x x x x
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 x x . . . x . x . x . . . x x
 x . x . x . . x . . x . x . x
 . . . x x x x . x x x x . . .
 x . x . x . . x . . x . x . x
 x x . . . x . x . x . . . x x
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 x x x x . . . x . . . x x x x
 x x x x x . x . x . x x x x x
 x x x x x x . . . x x x x x x
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Stage 8
 x x x x x x x x . x x x x x x x x
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Stage 9
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 x . x . . . x x . x . x x . . . x . x
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 x . x . . . x x . x . x x . . . x . x
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Stage 10
 x x x x x x x x x x . x x x x x x x x x x
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 x x x x x . x . x . x . x . x . x x x x x
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Stage 11
 x x x x x x x x x x x . x x x x x x x x x x x
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 x . x . x . . x . x . x . x . x . . x . x . x
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Stage 12
 x x x x x x x x x x x x . x x x x x x x x x x x x
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 x x x . x x x . x . x . x . x . x . x x x . x x x
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 x x x . x x x . x . x . x . x . x . x x x . x x x
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Stage 13
 x x x x x x x x x x x x x . x x x x x x x x x x x x x
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 x x x x . . . x x x . x x x x x . x x x . . . x x x x
 x x x x x . x x x . . x . x . x . . x x x . x x x x x
 x x x x . x x x . x x . x x x . x x . x x x . x x x x
 x . x . . . x . . x . x . x . x . x . . x . . . x . x
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 x . x . . . x . . x . x . x . x . x . . x . . . x . x
 x x x x . x x x . x x . x x x . x x . x x x . x x x x
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Stage 14
 x x x x x x x x x x x x x x . x x x x x x x x x x x x x x
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Stage 15
 x x x x x x x x x x x x x x x . x x x x x x x x x x x x x x x
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Stage 16
 x x x x x x x x x x x x x x x x . x x x x x x x x x x x x x x x x
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Stage 17
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 . . . x x x x x x x x x x x x x x . x x x x x x x x x x x x x x . . .
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Stage 18
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Stage 19
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Stage 20
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