|
| |
|
|
A020740
|
|
Max_{k=0..n} d(C(n,k)) - d(C(n,[ n/2 ])), where d() = number of divisors.
|
|
2
| |
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 12, 16, 32, 0, 0, 0, 64, 48, 0, 0, 96, 0, 0, 0, 192, 256, 0, 256, 384, 0, 0, 0, 0, 0, 832, 768, 512, 0, 0, 0, 0, 384, 576, 1536, 3072, 2048, 8448, 7680, 5632, 0, 0, 0, 14336, 3584, 0, 0, 3072
(list; graph; refs; listen; history; internal format)
|
|
|
|
OFFSET
| 1,18
|
|
|
EXAMPLE
| n=20, d(C[ 20,10 ])= 48 and the d(C[ 20,k ]) values are 1,6,8,16,24,40,64,80. The maximum is 80, so the difference is 80-48 = 32.
|
|
|
CROSSREFS
| Cf. A000005, A048485, A048569.
Sequence in context: A192609 A157678 A109240 * A086980 A058203 A050585
Adjacent sequences: A020737 A020738 A020739 * A020741 A020742 A020743
|
|
|
KEYWORD
| nonn
|
|
|
AUTHOR
| Labos E. (labos(AT)ana.sote.hu)
|
| |
|
|
