A253604 a(n) = (n^(n-1)+1)^n.

2, 9, 1000, 17850625, 96132816409376, 221244556300694143783489, 311992044873796240380263281250000000, 374145846406785831860102174312003089603054492712961, 507528892168086660506357001295247426244187377081938096246553087918592

Offset

1,1

Links

Table of n, a(n) for n=1..9.

Formula

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

Example

For n=2 a(2)=(2^(2-1)+1)^2=(2+1)^2=9.

Mathematica

a253604[n_] := Block[{f}, f[x_] := (x^(x - 1) + 1)^x; Array[f, n]]; a253604[9] (* Michael De Vlieger, Jan 06 2015 *)
Table[(n^(n-1)+1)^n, {n, 9}] (* Harvey P. Dale, Nov 27 2018 *)

Crossrefs

Sequence in context: A112961 A114953 A252583 * A067691 A062840 A024226

Adjacent sequences: A253601 A253602 A253603 * A253605 A253606 A253607

Keyword

nonn

Author

Abhik Sarkar, Jan 05 2015

Extensions

Corrected by Harvey P. Dale, Nov 27 2018

Status

approved