login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A017545 a(n) = 12n + 2. 13
2, 14, 26, 38, 50, 62, 74, 86, 98, 110, 122, 134, 146, 158, 170, 182, 194, 206, 218, 230, 242, 254, 266, 278, 290, 302, 314, 326, 338, 350, 362, 374, 386, 398, 410, 422, 434, 446, 458, 470, 482, 494, 506, 518, 530, 542, 554, 566, 578, 590, 602, 614, 626, 638 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

COMMENTS

Apart from initial term(s), dimension of the space of weight 2n cusp forms for Gamma_0( 40 ).

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 0..2000

Tanya Khovanova, Recursive Sequences

William A. Stein, Dimensions of the spaces S_k(Gamma_0(N))

William A. Stein, The modular forms database

Index entries for linear recurrences with constant coefficients, signature (2,-1).

FORMULA

a(n) = 2*a(n-1) - a(n-2). - Vincenzo Librandi, Jun 07 2011

MAPLE

A017545:=n->12*n+2: seq(A017545(n), n=0..100); # Wesley Ivan Hurt, Apr 27 2017

MATHEMATICA

12*Range[0, 200]+2 (* Vladimir Joseph Stephan Orlovsky, Feb 19 2011*)

PROG

(MAGMA) [12*n+2: n in [0..60]]; // Vincenzo Librandi, Jun 07 2011

(PARI) a(n)=12*n+2 \\ Charles R Greathouse IV, Jul 10 2016

CROSSREFS

Cf. A008594, A017533, A017557.

Subsequence of A072065.

Sequence in context: A174594 A051222 A194411 * A280268 A109080 A180877

Adjacent sequences:  A017542 A017543 A017544 * A017546 A017547 A017548

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 | More pages
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy .

Last modified June 27 19:44 EDT 2017. Contains 288790 sequences.