|
Search: id:A127200
|
|
|
| A127200 |
|
Numerator of n-th partial sum of the Van der Waerden-Ulam binary measure of the primes. |
|
+0
2
|
|
| 1, 1, 5, 23, 49, 51, 13, 105, 211, 1693, 3391, 1697, 6791, 13585, 27173, 108699, 217405, 217409, 217411, 54353, 434825, 6957209, 13914427, 27828863, 55657735, 111315479, 222630967, 55657743, 445261949, 1781047807, 3562095625
(list; graph; listen)
|
|
|
OFFSET
|
2,3
|
|
|
MATHEMATICA
|
Table[Numerator[Sum[PrimePi[k]/2^k, {k, 2, x}]], {x, 2, 100}] (*Artur Jasinski*)
|
|
CROSSREFS
|
Cf. A119523, A127197, A127201.
Sequence in context: A031387 A057622 A055626 this_sequence A090686 A082277 A019267
Adjacent sequences: A127197 A127198 A127199 this_sequence A127201 A127202 A127203
|
|
KEYWORD
|
nonn,frac
|
|
AUTHOR
|
Artur Jasinski (grafix(AT)csl.pl), Jan 08 2007
|
|
|
Search completed in 0.002 seconds
|
