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 A075842 n 1's followed by n. 1
 11, 112, 1113, 11114, 111115, 1111116, 11111117, 111111118, 1111111119, 111111111110, 1111111111111, 11111111111112, 111111111111113, 1111111111111114, 11111111111111115, 111111111111111116, 1111111111111111117, 11111111111111111118, 111111111111111111119 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 REFERENCES J. Earls, On Smarandache Repunit N Numbers, Smarandache Notions Journal, Journal (2004), Vol. 14.1, pp 251-258. LINKS FORMULA a(n) = (10^n-1)/9*10^L + n, where L is the number of decimal digits of n. MATHEMATICA Array[(10^# - 1)/9*10^IntegerLength[#] + # &, 16] (* or *) Array[FromDigits[ConstantArray[1, #]~Join~IntegerDigits[#]] &, 16] (* Michael De Vlieger, Mar 21 2018 *) CROSSREFS Cf. A070746. Sequence in context: A263805 A058949 A119742 * A037535 A065834 A104720 Adjacent sequences:  A075839 A075840 A075841 * A075843 A075844 A075845 KEYWORD base,easy,nonn,less AUTHOR Jason Earls, Oct 15 2002 STATUS approved

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Last modified December 15 00:30 EST 2019. Contains 329988 sequences. (Running on oeis4.)