A024027 a(n) = 3^n - n^4.

1, 2, -7, -54, -175, -382, -567, -214, 2465, 13122, 49049, 162506, 510705, 1565762, 4744553, 14298282, 42981185, 129056642, 387315513, 1162131146, 3486624401, 10460158722, 31380825353, 94142898986, 282429204705

Offset

0,2

Links

Vincenzo Librandi, Table of n, a(n) for n = 0..200

Formula

a(n) = 3^n - n^4.

Mathematica

Table[3^n-n^4, {n, 0, 60}] (* Vladimir Joseph Stephan Orlovsky, Feb 15 2011 *)

Prog

(Magma) [3^n-n^4 : n in [0..30]]; // Vincenzo Librandi, May 17 2011

Crossrefs

Sequence in context: A193191 A180720 A168558 * A079410 A371617 A283335

Adjacent sequences: A024024 A024025 A024026 * A024028 A024029 A024030

Keyword

sign

Author

N. J. A. Sloane

Status

approved