login

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

A141694
a(n) = 22*n + 12.
2
12, 34, 56, 78, 100, 122, 144, 166, 188, 210, 232, 254, 276, 298, 320, 342, 364, 386, 408, 430, 452, 474, 496, 518, 540, 562, 584, 606, 628, 650, 672, 694, 716, 738, 760, 782, 804, 826, 848, 870, 892, 914, 936, 958, 980, 1002, 1024, 1046, 1068, 1090, 1112
OFFSET
0,1
FORMULA
From G. C. Greubel, Jun 03 2018: (Start)
a(n) = 2*a(n-1) - a(n-2).
G.f.: 2*(6 + 5*x)/(1 - x)^2.
E.g.f.: 2*(6 + 11*x)*exp(x). (End)
MATHEMATICA
Range[12, 1500, 22] (* Vladimir Joseph Stephan Orlovsky, Jun 01 2011 *)
LinearRecurrence[{2, -1}, {12, 34}, 60] (* Harvey P. Dale, Sep 06 2024 *)
PROG
(Magma) [22*n + 12: n in [0..50]]; // Vincenzo Librandi, Aug 08 2011
(PARI) for(n=0, 50, print1(2*(11*n + 6), ", ")) \\ G. C. Greubel, Jun 03 2018
CROSSREFS
Cf. A008604, A010861 (first differences).
Sequence in context: A122436 A063554 A059805 * A228595 A077295 A030655
KEYWORD
nonn,less,easy
AUTHOR
Paul Curtz, Sep 10 2008
EXTENSIONS
Edited by R. J. Mathar, Oct 24 2008
Offset changed from 1 to 0 by Vincenzo Librandi, Aug 08 2011
STATUS
approved