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 A121900 a(n) = ceiling((Pi - e)*sqrt(n)). 3
 0, 1, 1, 1, 1, 1, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,7 LINKS Vincenzo Librandi, Table of n, a(n) for n = 0..999 [Offset shifted by Georg Fischer, Sep 02 2022] MATHEMATICA Table[Ceiling[(Pi - E) Sqrt[n]], {n, 0, 110}] (* Vincenzo Librandi, Feb 21 2013 *) PROG (PARI) for(n=0, 50, print1(ceil((Pi - exp(1))*sqrt(n)), ", ")) \\ G. C. Greubel, Oct 28 2017 (Magma) C := ComplexField(); [Ceiling((Pi(C) - Exp(1))*Sqrt(n)): n in [0..50]]; // G. C. Greubel, Oct 28 2017 CROSSREFS Cf. A073244 (Pi-e), A121854, A121855, A121856, A121857. Sequence in context: A135661 A082998 A076620 * A333525 A373095 A056811 Adjacent sequences: A121897 A121898 A121899 * A121901 A121902 A121903 KEYWORD nonn,easy AUTHOR Mohammad K. Azarian, Sep 01 2006 EXTENSIONS Offset corrected by Mohammad K. Azarian, Nov 20 2008 Offset changed to 0 by Georg Fischer, Sep 02 2022 STATUS approved

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Last modified September 8 16:23 EDT 2024. Contains 375753 sequences. (Running on oeis4.)