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

8, 48, 88, 128, 168, 208, 248, 288, 328, 368, 408, 448, 488, 528, 568, 608, 648, 688, 728, 768, 808, 848, 888, 928, 968, 1008, 1048, 1088, 1128, 1168, 1208, 1248, 1288, 1328, 1368, 1408, 1448, 1488, 1528, 1568, 1608, 1648, 1688, 1728, 1768, 1808, 1848

Offset

1,1

Comments

Multiples of 8 with unit digit equal to 8.

Links

Vincenzo Librandi, Table of n, a(n) for n = 1..2000

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

Formula

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

From G. C. Greubel, Jul 18 2017: (Start)

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

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

Mathematica

NestList[#+40&, 8, 50] (* Harvey P. Dale, Oct 02 2013 *)

Prog

(Magma) [40*n-32: n in [1..50]]; // Vincenzo Librandi, Jun 19 2011
(PARI) a(n)=40*n-32 \\ Charles R Greathouse IV, Aug 25 2014

Crossrefs

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

Sequence in context: A333522 A165037 A121028 * A250257 A067239 A152750

Adjacent sequences: A139276 A139277 A139278 * A139280 A139281 A139282

Keyword

nonn,easy

Author

Odimar Fabeny, Jun 06 2008

Extensions

More terms from Reinhard Zumkeller, Jun 22 2008

New definition from Paolo P. Lava, Sep 06 2010

Status

approved