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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