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A118116 a(n) = n concatenated n^2 times. 0
1, 2222, 333333333, 4444444444444444, 5555555555555555555555555, 666666666666666666666666666666666666, 7777777777777777777777777777777777777777777777777 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
Is the partial sum of a(n) ever prime? See also A000461 Concatenate n n times.
LINKS
FORMULA
a(n) = n concatenated A000290(n) times. a(n) = A000027(n) concatenated A000290(n) times.
MATHEMATICA
Table[FromDigits[Table[n, {n^2}]], {n, 8}] (* Harvey P. Dale, Oct 24 2013 *)
CROSSREFS
Sequence in context: A046443 A257826 A043500 * A053395 A178919 A205225
KEYWORD
base,easy,nonn
AUTHOR
Jonathan Vos Post, May 11 2006
STATUS
approved

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Last modified April 23 03:30 EDT 2024. Contains 371906 sequences. (Running on oeis4.)