|
|
|
|
3, 3, 5, 5, 9, 13, 21, 33, 61, 105, 189, 345, 633, 1173, 2193, 4097, 7713, 14573, 27597, 52433, 99881, 190653, 364725, 699073, 1342185, 2581113, 4971069, 9586985, 18512793, 35791473, 69273669, 134217729, 260301177, 505290273, 981706833
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,1
|
|
LINKS
|
|
|
MATHEMATICA
|
Table[a=Select[Divisors[n], OddQ[#]&]; 1 + Apply[Plus, 2^(n/a) EulerPhi[a]]/n, {n, 1, 35}] (* Vincenzo Librandi, Mar 29 2017 *)
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|