A017365 a(n) = 10n + 8.

8, 18, 28, 38, 48, 58, 68, 78, 88, 98, 108, 118, 128, 138, 148, 158, 168, 178, 188, 198, 208, 218, 228, 238, 248, 258, 268, 278, 288, 298, 308, 318, 328, 338, 348, 358, 368, 378, 388, 398, 408, 418, 428, 438, 448, 458, 468, 478, 488, 498, 508, 518, 528, 538

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

a(n) = 2*a(n-1) - a(n-2). - Vincenzo Librandi, May 29 2011

G.f.: 2*( 4+x ) / (x-1)^2 . - R. J. Mathar, Nov 26 2014

Mathematica

Range[8, 1000, 10] (* Vladimir Joseph Stephan Orlovsky, May 28 2011 *)
LinearRecurrence[{2, -1}, {8, 18}, 60] (* Harvey P. Dale, Aug 31 2015 *)

Prog

(Magma) [10*n+8: n in [0..60]]; // Vincenzo Librandi, May 29 2011

Crossrefs

2*A016897(n).

Sequence in context: A283611 A043521 A277595 * A352735 A084394 A085248

Adjacent sequences: A017362 A017363 A017364 * A017366 A017367 A017368

Keyword

nonn,easy

Author

N. J. A. Sloane

Status

approved