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A055657
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If a(n) is prime, a(n+1) = a(n) followed by a 1; if a(n) is composite, a(n+1) = concatenation of distinct prime factors of a(n).
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1
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0, 1, 11, 111, 337, 3371, 33711, 317661, 3195573, 33134361, 313849599, 3714945219, 3412771691, 7487538813, 38359316903, 1311540119013, 3837735218627, 38377352186271, 371907319435931, 715238131259661
(list; graph; refs; listen; history; internal format)
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