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 A186546 Floor-Sqrt transform of Catalan numbers (A000108). 2
 1, 1, 1, 2, 3, 6, 11, 20, 37, 69, 129, 242, 456, 861, 1635, 3113, 5946, 11386, 21854, 42038, 81019, 156416, 302460, 585712, 1135739, 2204982, 4285715, 8338678, 16240318, 31658209, 61765576, 120601144, 235656667, 460799447, 901634095, 1765300397, 3458294143, 6778702259 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,4 LINKS Vincenzo Librandi, Table of n, a(n) for n = 0..89 FORMULA a(n) = floor(sqrt(binomial(2*n,n)/(n+1))) MATHEMATICA Table[Floor[Sqrt[Binomial[2n, n]/(n+1)]], {n, 0, 100}] PROG (Maxima) makelist(floor(sqrt(binomial(2*n, n)/(n+1))), n, 0, 24); CROSSREFS Sequence in context: A047081 A115792 A054177 * A318910 A141435 A096080 Adjacent sequences: A186543 A186544 A186545 * A186547 A186548 A186549 KEYWORD nonn AUTHOR Emanuele Munarini, Jul 07 2011 STATUS approved

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Last modified April 18 03:01 EDT 2024. Contains 371767 sequences. (Running on oeis4.)