login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A192664 Floor-Sqrt transform of the binomial coefficients bin(2*n+1,n) (A001700). 0
1, 1, 3, 5, 11, 21, 41, 80, 155, 303, 593, 1162, 2280, 4478, 8806, 17336, 34158, 67361, 132938, 262532, 518776, 1025694, 2028969, 4015445, 7950176, 15746722, 31200476, 61841291, 122611717, 243171319, 482404577, 957241908, 1899924792, 3771806031, 7489535293, 14874685547 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Table of n, a(n) for n=0..35.

FORMULA

a(n) = floor(sqrt(binomial(2*n+1,n))).

MATHEMATICA

Table[Floor[Sqrt[Binomial[2n+1, n]]], {n, 0, 100}]

PROG

(Maxima) makelist(floor(sqrt(binomial(2*n+1, n))), n, 0, 24);

CROSSREFS

Sequence in context: A230097 A146787 A147243 * A122997 A146042 A291219

Adjacent sequences:  A192661 A192662 A192663 * A192665 A192666 A192667

KEYWORD

nonn

AUTHOR

Emanuele Munarini, Jul 07 2011

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified June 18 17:05 EDT 2019. Contains 324214 sequences. (Running on oeis4.)