A062798 Inverse Moebius transform of central binomial coefficients f[x]=C(c,[x/2])=A001405[x].

1, 3, 4, 9, 11, 26, 36, 79, 130, 265, 463, 956, 1717, 3470, 6449, 12949, 24311, 48772, 92379, 185027, 352755, 705897, 1352079, 2705182, 5200311, 10402319, 20058430, 40120076, 77558761, 155124243, 300540196, 601093339, 1166803576, 2333630533

Offset

0,2

Links

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

Formula

a(n)=Sum{C(d, [d/2])}, d|n and C(d, [d/2])=A001405[d].

Example

n=9, divisors={1,3,9} a(9)=C[1,0]+C[3,1]+C[9,4]=1+3+126=130

Crossrefs

A001405.

Sequence in context: A004657 A054075 A366753 * A327060 A270817 A182828

Adjacent sequences: A062795 A062796 A062797 * A062799 A062800 A062801

Keyword

nonn

Author

Labos Elemer, Jul 19 2001

Status

approved