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 A099675 Partial sums of repdigits of A002282. 4
 8, 96, 984, 9872, 98760, 987648, 9876536, 98765424, 987654312, 9876543200, 98765432088, 987654320976, 9876543209864, 98765432098752, 987654320987640, 9876543209876528, 98765432098765416, 987654320987654304 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS FORMULA a(n) = (8/81)*(10^(n+1) - 9*n - 10). - R. Piyo (nagoya314(AT)yahoo.com), Dec 10 2004 EXAMPLE 8 + 88 + 888 + 8888 + 88888 = a(5) = 98760. MATHEMATICA <

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Last modified April 8 14:52 EDT 2020. Contains 333314 sequences. (Running on oeis4.)