|
Search: id:A062798
|
|
|
| A062798 |
|
Inverse Moebius transform of central binomial coefficients f[x]=C(c,[x/2])=A001405[x]. |
|
+0
1
|
|
| 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
(list; graph; listen)
|
|
|
OFFSET
|
0,2
|
|
|
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: A023420 A004657 A054075 this_sequence A035256 A047075 A104479
Adjacent sequences: A062795 A062796 A062797 this_sequence A062799 A062800 A062801
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
Labos E. (labos(AT)ana.sote.hu), Jul 19 2001
|
|
|
Search completed in 0.002 seconds
|
