|
| |
|
|
A175138
|
|
a(n) = product_{i=1..n-1} a(i), with a(1) = 3 and a(2) = 5.
|
|
2
|
|
|
|
3, 5, 15, 225, 50625, 2562890625, 6568408355712890625, 43143988327398919500410556793212890625, 1861403728794734215467410604755702820123364205073812627233564853668212890625
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
|
OFFSET
|
1,1
|
|
|
COMMENTS
|
Except for first three terms, a(n) = (a(n-1))^2 .
|
|
|
LINKS
|
|
|
|
FORMULA
|
a(n) = 15^(2^(n-3)), n > 2.
|
|
|
MATHEMATICA
|
|
|
|
CROSSREFS
|
|
|
|
KEYWORD
|
nonn
|
|
|
AUTHOR
|
|
|
|
EXTENSIONS
|
Edited by Jaroslav Krizek and R. J. Mathar, Mar 04 2010
|
|
|
STATUS
|
approved
|
| |
|
|
