|
| |
|
|
A111134
|
|
Numbers of the form p^(p^k-1) (p prime, k>=0).
|
|
1
|
|
|
|
1, 2, 8, 9, 128, 625, 6561, 32768, 117649, 2147483648, 25937424601, 2541865828329, 23298085122481, 59604644775390625, 9223372036854775808, 48661191875666868481, 104127350297911241532841
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
|
OFFSET
|
1,2
|
|
|
COMMENTS
|
The refactorable prime powers A000961.
|
|
|
LINKS
|
|
|
|
CROSSREFS
|
The sequence forms a subsequence of the refactorable numbers A033950; on the other hand A036878 is a subsequence.
|
|
|
KEYWORD
|
nonn
|
|
|
AUTHOR
|
|
|
|
EXTENSIONS
|
|
|
|
STATUS
|
approved
|
| |
|
|
