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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
OFFSET
1,1
LINKS
FORMULA
a(n) = n + n^(n-1).
a(n) = n + A000169(n). - R. J. Mathar, Jan 30 2010
EXAMPLE
a(10) = 1000000010 = 10 + 10^9.
MATHEMATICA
Table[n + n^(n - 1), {n, 25}] (* Vladimir Joseph Stephan Orlovsky, Jun 16 2011 *)
PROG
(Magma) [n + n^(n-1): n in [1..20]]; // Vincenzo Librandi, Jun 17 2011
CROSSREFS
Sequence in context: A129824 A266463 A013207 * A078919 A372994 A085864
KEYWORD
easy,nonn
AUTHOR
Lorenzo Cococcia, Jan 27 2010
EXTENSIONS
Every second term removed by R. J. Mathar, Jan 30 2010
STATUS
approved