|
|
A172165
|
|
A simple sequence a(n) = n + n^(n-1).
|
|
2
|
|
|
2, 4, 12, 68, 630, 7782, 117656, 2097160, 43046730, 1000000010, 25937424612, 743008370700, 23298085122494, 793714773254158, 29192926025390640, 1152921504606846992, 48661191875666868498, 2185911559738696531986, 104127350297911241532860
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,1
|
|
LINKS
|
|
|
FORMULA
|
a(n) = n + n^(n-1).
|
|
EXAMPLE
|
a(10) = 1000000010 = 10 + 10^9.
|
|
MATHEMATICA
|
|
|
PROG
|
|
|
CROSSREFS
|
|
|
KEYWORD
|
easy,nonn
|
|
AUTHOR
|
|
|
EXTENSIONS
|
|
|
STATUS
|
approved
|
|
|
|