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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

Table of n, a(n) for n=1..7.

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

Cf. A000027, A000290, A000461.

Sequence in context: A046443 A257826 A043500 * A053395 A178919 A205225

Adjacent sequences:  A118113 A118114 A118115 * A118117 A118118 A118119

KEYWORD

base,easy,nonn

AUTHOR

Jonathan Vos Post, May 11 2006

STATUS

approved

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Last modified October 15 05:43 EDT 2019. Contains 328026 sequences. (Running on oeis4.)