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A028987
Repdigit - 1 is prime (next term is 88...8 (72 digits)).
+0
15
4, 6, 8, 44, 444, 888, 2222, 8888, 444444, 888888, 444444444, 888888888, 444444444444, 888888888888, 222222222222222222, 444444444444444444444444444444, 44444444444444444444444444444444
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Maintained by
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Last modified December 17 23:40 EST 2009. Contains 171025 sequences.
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