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A169859 Smallest nontrivial square (i.e., not of the form 10^2k, k>0) with at least n identical adjacent digits. 1
1, 144, 1444, 1666681, 111112681, 3333330225, 132922222225, 1433333333961, 2582708888888881, 28777777777780164, 88888888888905609, 2222222222222640225, 2222222222222640225 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
LINKS
EXAMPLE
a(3) = 1444 because it has 3 adjacent 4's and no square less than 1444 has 3 adjacent digits which are the same.
CROSSREFS
Sequence in context: A222515 A023096 A223435 * A137416 A109117 A209205
KEYWORD
nonn,base
AUTHOR
Jon E. Schoenfield, May 14 2010
STATUS
approved

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Last modified April 20 03:03 EDT 2024. Contains 371798 sequences. (Running on oeis4.)