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

1,2

Links

Table of n, a(n) for n=1..19.

Formula

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

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

Mathematica

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

Crossrefs

Sequence in context: A077428 A222765 A326091 * A201259 A177008 A218923

Adjacent sequences: A173232 A173233 A173234 * A173236 A173237 A173238

Keyword

nonn

Author

Philippe Deléham, Feb 13 2010

Extensions

More terms from Harvey P. Dale, Jan 21 2015

Status

approved