A024021 2^n-n^11.

1, 1, -2044, -177139, -4194288, -48828093, -362796992, -1977326615, -8589934336, -31381059097, -99999998976, -285311668563, -743008366592, -1792160385845, -4049565153280, -8649755826607, -17592185978880

Offset

0,3

Links

Vincenzo Librandi, Table of n, a(n) for n = 0..235

Index entries for linear recurrences with constant coefficients, signature (14,-90,352,-935,1782,-2508,2640,-2079,1210,-506,144,-25,2).

Formula

G.f.: -(3*x^12 +4059*x^11 +303304*x^10 +4254119*x^9 +17273235*x^8 +21709590*x^7 +3752904*x^6 -5331930*x^5 -1897719*x^4 -148785*x^3 -1968*x^2 -13*x +1) / ((x -1)^12*(2*x -1)). - Colin Barker, Oct 04 2014

Mathematica

Table[2^n-n^11, {n, 0, 20}] (* Harvey P. Dale, Aug 17 2019 *)

Prog

(Magma) [2^n-n^11: n in [0..30] ]; // Vincenzo Librandi, Apr 30 2011

Crossrefs

Sequence in context: A172594 A115553 A068264 * A370685 A298756 A145590

Adjacent sequences: A024018 A024019 A024020 * A024022 A024023 A024024

Keyword

sign,easy

Author

N. J. A. Sloane.

Status

approved