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A048420
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Primes whose consecutive digits differ by 8 or 9.
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7
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2, 3, 5, 7, 19, 191, 809, 919, 9091, 80809, 80909, 91909, 190909, 909091, 1908091, 1909091, 9090919, 9091909, 19090909, 80919191, 190909091, 191908091, 809080919, 809191919, 908080909, 919080919, 919191919, 1909080809
(list; graph; refs; listen; history; internal format)
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