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 A111892 Number of numbers m <= n such that 2 equals the second digit after decimal point of square root of n in decimal representation. 11
 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,17 COMMENTS For n>1: if A111862(n)=2 then a(n)=a(n-1)+1 else a(n)=a(n-1). a(n)/n --> 1/10. REFERENCES G. Polya and G. Szego, Problems and Theorems in Analysis I (Springer 1924, reprinted 1972), Part Two, Chap. 4, Sect. 4, Problem 178. LINKS EXAMPLE a(10) = 1, a(100) = 7, a(1000) = 95, a(10000) = 1000. CROSSREFS Cf. A111890, A111891, A111893, A111894, A111895, A111896, A111897, A111898, A111899, A111852. Sequence in context: A111891 A296076 A086858 * A108248 A087104 A069926 Adjacent sequences:  A111889 A111890 A111891 * A111893 A111894 A111895 KEYWORD nonn,base AUTHOR Reinhard Zumkeller, Aug 20 2005 STATUS approved

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Last modified October 23 08:57 EDT 2019. Contains 328345 sequences. (Running on oeis4.)