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A033285
Numbers whose maximal base-10 run length is 4.
1
1111, 2222, 3333, 4444, 5555, 6666, 7777, 8888, 9999, 10000, 11110, 11112, 11113, 11114, 11115, 11116, 11117, 11118, 11119, 12222, 13333, 14444, 15555, 16666, 17777, 18888, 19999, 20000, 21111, 22220, 22221, 22223
OFFSET
1,1
COMMENTS
There are 9 4-digit terms, 162 5-digit terms, and 2,349 6-digit terms. - Harvey P. Dale, Sep 07 2024
LINKS
MATHEMATICA
Select[Range[1000, 99999], Max[Length/@Split[IntegerDigits[#]]]==4&] (* Harvey P. Dale, Sep 07 2024 *)
CROSSREFS
Sequence in context: A218042 A176670 A072434 * A085109 A346000 A074843
KEYWORD
nonn,base
STATUS
approved