A173235 a(n) = n^(n-1) + n - 1.

1, 3, 11, 67, 629, 7781, 117655, 2097159, 43046729, 1000000009, 25937424611, 743008370699, 23298085122493, 793714773254157, 29192926025390639, 1152921504606846991, 48661191875666868497, 2185911559738696531985, 104127350297911241532859

Offset: 1

Author

Philippe Deléham, Feb 13 2010

Keywords

• nonn

Programs

Mathematica

Table[n^(n-1)+n-1,{n,30}] (* Harvey P. Dale, Jan 21 2015 *)

Formula

a(n) = n^(n-1)+n-1.

a(n) = A172165(n)-1. - R. J. Mathar, Mar 11 2010

Extensions

More terms from Harvey P. Dale, Jan 21 2015