A192664 Floor-Sqrt transform of the binomial coefficients bin(2*n+1,n) (A001700).

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

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: A146787 A147243 A372451 * A122997 A146042 A291219

Adjacent sequences: A192661 A192662 A192663 * A192665 A192666 A192667

Keyword

nonn

Author

Emanuele Munarini, Jul 07 2011

Status

approved