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A054264
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Concatenation of composite numbers between successive primes.
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4
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4, 6, 8910, 12, 141516, 18, 202122, 2425262728, 30, 3233343536, 383940, 42, 444546, 4849505152, 5455565758, 60, 6263646566, 686970, 72, 7475767778, 808182, 8485868788, 90919293949596, 9899100, 102, 104105106, 108, 110111112
(list; graph; refs; listen; history; internal format)
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