login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A024129 11^n-n^2. 2
1, 10, 117, 1322, 14625, 161026, 1771525, 19487122, 214358817, 2357947610, 25937424501, 285311670490, 3138428376577, 34522712143762, 379749833583045, 4177248169415426, 45949729863571905, 505447028499293482 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 0..300

Index entries for linear recurrences with constant coefficients, signature (14,-36,34,-11).

FORMULA

G.f.: (1-4*x+13*x^2+10*x^3)/((1-11*x)*(1-x)^3). - Vincenzo Librandi, Oct 06 2014

MATHEMATICA

Table[11^n - n^2, {n, 0, 25}] (* or *) CoefficientList[Series[(1 - 4 x + 13 x^2 + 10 x^3)/((1 - 11 x) (1 - x)^3), {x, 0, 30}], x] (* Vincenzo Librandi, Oct 06 2014 *)

PROG

(MAGMA) [11^n-n^2: n in [0..20]]; // Vincenzo Librandi, Jul 01 2011

(PARI) a(n)=11^n-n^2 \\ Charles R Greathouse IV, Jul 01 2011

CROSSREFS

Cf. similar sequences listed in A024025.

Sequence in context: A308667 A251318 A083448 * A262970 A309582 A155622

Adjacent sequences:  A024126 A024127 A024128 * A024130 A024131 A024132

KEYWORD

nonn,easy

AUTHOR

N. J. A. Sloane.

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified August 4 16:34 EDT 2020. Contains 336202 sequences. (Running on oeis4.)