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A017029 a(n) = 7*n + 4. 20
4, 11, 18, 25, 32, 39, 46, 53, 60, 67, 74, 81, 88, 95, 102, 109, 116, 123, 130, 137, 144, 151, 158, 165, 172, 179, 186, 193, 200, 207, 214, 221, 228, 235, 242, 249, 256, 263, 270, 277, 284, 291, 298, 305, 312, 319, 326, 333, 340, 347, 354, 361, 368, 375, 382 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 0..5000

Tanya Khovanova, Recursive Sequences

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

FORMULA

G.f.: (3*x + 4)/(1-x)^2. - Vincenzo Librandi, Jan 27 2013

MATHEMATICA

Range[4, 1000, 7] (* Vladimir Joseph Stephan Orlovsky, Jun 25 2009 *)

CoefficientList[Series[(3*x + 4)/(1 - x)^2, {x, 0, 60}], x] (* Vincenzo Librandi, Jan 27 2013 *)

PROG

(MAGMA) [7*n + 4: n in [0..60]]; // Vincenzo Librandi, Jun 18 2011

(PARI) a(n)=7*n+4 \\ Charles R Greathouse IV, Jul 10 2016

CROSSREFS

Cf. A008589, A016993, A017005, A017017.

Cf. similar sequences with closed form (2*k-1)*n+k listed in A269044.

Sequence in context: A025403 A047703 A242679 * A009873 A213479 A008054

Adjacent sequences:  A017026 A017027 A017028 * A017030 A017031 A017032

KEYWORD

nonn,easy

AUTHOR

N. J. A. Sloane

EXTENSIONS

Extended by Ray Chandler, Jan 25 2005

STATUS

approved

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Last modified August 23 03:42 EDT 2017. Contains 290958 sequences.