|
Search: id:A129539
|
|
|
| A129539 |
|
Composite numbers to composite powers. |
|
+0
1
|
|
| 256, 1296, 4096, 6561, 10000, 20736, 38416, 46656, 50625, 65536, 104976, 160000, 194481, 234256, 262144, 331776, 390625, 456976, 531441, 614656, 810000, 1000000, 1048576, 1185921, 1336336, 1500625, 1679616, 2085136, 2313441
(list; graph; listen)
|
|
|
OFFSET
|
0,1
|
|
|
EXAMPLE
|
The sequence starts with 256, because 256 is the smallest composite number to the smallest composite power.
|
|
MATHEMATICA
|
comp = Select[Range[2, 40], ! PrimeQ[ # ] &]; Select[ Union[Flatten[ Table[comp[[n]]^comp[[k]], {n, Length[comp]}, {k, Length[comp]}]]], # < comp[[Length[comp]]]^4 &]
|
|
CROSSREFS
|
Cf. A113877 - Semiprimes to semiprime powers - is a subsequence of this sequence.
Sequence in context: A135272 A045034 A120054 this_sequence A113877 A014711 A014713
Adjacent sequences: A129536 A129537 A129538 this_sequence A129540 A129541 A129542
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
Tanya Khovanova (tanyakh(AT)yahoo.com), May 29 2007
|
|
|
Search completed in 0.002 seconds
|
