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A139279 a(n) = 40*n - 32. 18

%I

%S 8,48,88,128,168,208,248,288,328,368,408,448,488,528,568,608,648,688,

%T 728,768,808,848,888,928,968,1008,1048,1088,1128,1168,1208,1248,1288,

%U 1328,1368,1408,1448,1488,1528,1568,1608,1648,1688,1728,1768,1808,1848

%N a(n) = 40*n - 32.

%C Multiples of 8 with unit digit equal to 8.

%H Vincenzo Librandi, <a href="/A139279/b139279.txt">Table of n, a(n) for n = 1..2000</a>

%H <a href="/index/Rec#order_02">Index entries for linear recurrences with constant coefficients</a>, signature (2,-1).

%F a(n) = a(n-1) + 40.

%F From _G. C. Greubel_, Jul 18 2017: (Start)

%F G.f.: (72*x - 32)/(1-x)^2.

%F E.g.f.: (40*x - 32)*exp(x). (End)

%t NestList[#+40&,8,50] (* _Harvey P. Dale_, Oct 02 2013 *)

%o (MAGMA) [40*n-32: n in [1..50]]; // _Vincenzo Librandi_, Jun 19 2011

%o (PARI) a(n)=40*n-32 \\ _Charles R Greathouse IV_, Aug 25 2014

%Y Subsequence of A034709, together with A017281, A017293, A139222, A139245, A017329, A139249, A139264 and A139280.

%K nonn,easy

%O 1,1

%A _Odimar Fabeny_, Jun 06 2008

%E More terms from _Reinhard Zumkeller_, Jun 22 2008

%E New definition from _Paolo P. Lava_, Sep 06 2010

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Last modified November 14 17:24 EST 2019. Contains 329126 sequences. (Running on oeis4.)