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 A353179 a(n) is the first nonzero digit in the decimal expansion of 1/prime(n). 0
 5, 3, 2, 1, 9, 7, 5, 5, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 9, 9, 9, 9, 8, 7, 7, 7, 7, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Table of n, a(n) for n=1..87. FORMULA a(n) = A052038(prime(n)). MAPLE a:= n-> (p-> floor(10^length(p)/p))(ithprime(n)): seq(a(n), n=1..100); # Alois P. Heinz, Apr 30 2022 PROG (PARI) a(n) = my(p=prime(n)); floor(10^(1+logint(p-1, 10))/p) \\ Felix Fröhlich, Apr 29 2022 CROSSREFS Cf. A052038, A000040. Sequence in context: A350041 A317674 A201333 * A088324 A352153 A052038 Adjacent sequences: A353176 A353177 A353178 * A353180 A353181 A353182 KEYWORD nonn,easy,base AUTHOR Firdous Ahmad Mala, Apr 29 2022 EXTENSIONS More terms from Felix Fröhlich, Apr 29 2022 STATUS approved

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Last modified April 19 15:34 EDT 2024. Contains 371794 sequences. (Running on oeis4.)