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A192673 Floor-Sqrt transform of large Schroder numbers (A006318). 0
1, 1, 2, 4, 9, 19, 42, 92, 203, 453, 1018, 2300, 5224, 11919, 27301, 62750, 144662, 334392, 774802, 1799089, 4185524, 9754468, 22769099, 53225213, 124585182, 291975928, 685044632, 1608962053, 3782645385, 8901012965, 20962890607, 49409138924, 116543063346, 275086432485 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Table of n, a(n) for n=0..33.

FORMULA

a(n) = floor(sqrt(largeSchroder(n))).

MATHEMATICA

FSFromSeries[f_, x_, n_] := Map[Floor[Sqrt[#]]&, CoefficientList[Series[f, {x, 0, n}], x]]

FSFromSeries[(1-x-Sqrt[1-6x+x^2])/(2x), x, 100]

CROSSREFS

Sequence in context: A307464 A127681 A192923 * A193021 A112569 A301706

Adjacent sequences:  A192670 A192671 A192672 * A192674 A192675 A192676

KEYWORD

nonn

AUTHOR

Emanuele Munarini, Jul 07 2011

STATUS

approved

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Last modified May 31 02:51 EDT 2020. Contains 334747 sequences. (Running on oeis4.)