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A378088
Repdigit untouchable numbers.
0
2, 5, 88, 66666, 222222, 6666666
OFFSET
1,1
EXAMPLE
222222 is a sequence member because it is an untouchable number whose digits are all equal.
CROSSREFS
Intersection of A005114 and A010785.
Sequence in context: A309089 A120798 A048187 * A082431 A023272 A057978
KEYWORD
nonn,base,hard,more
AUTHOR
Shyam Sunder Gupta, Nov 16 2024
STATUS
approved