A102438 a(n) = 100*n + 44.

44, 144, 244, 344, 444, 544, 644, 744, 844, 944, 1044, 1144, 1244, 1344, 1444, 1544, 1644, 1744, 1844, 1944, 2044, 2144, 2244, 2344, 2444, 2544, 2644, 2744, 2844, 2944, 3044, 3144, 3244, 3344, 3444, 3544, 3644, 3744, 3844, 3944, 4044, 4144, 4244, 4344, 4444, 4544, 4644, 4744, 4844, 4944

Offset

0,1

Links

Vincenzo Librandi, Table of n, a(n) for n = 0..1000

Tanya Khovanova, Recursive Sequences.

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

Formula

From Elmo R. Oliveira, Jun 09 2025: (Start)

G.f.: 4*(11 + 14*x)/(1 - x)^2.

E.g.f.: 4*exp(x)*(11 + 25*x).

a(n) = 2*a(n-1) - a(n-2). (End)

Mathematica

Array[100 # + 44 &, 40, 0] (* Michael De Vlieger, Aug 15 2017 *)
LinearRecurrence[{2, -1}, {44, 144}, 50] (* Vincenzo Librandi, Aug 16 2017 *)

Prog

(PARI) a(n) = 100*n + 44 \\ Altug Alkan, Aug 16 2017
(Magma) [100*n+44: n in [0..50]]; // Vincenzo Librandi, Aug 16 2017

Crossrefs

Subsequence of A008586.

Sequence in context: A183634 A043506 A044376 * A044757 A204033 A072428

Adjacent sequences: A102435 A102436 A102437 * A102439 A102440 A102441

Keyword

easy,nonn,less

Author

Giovanni Teofilatto, Feb 22 2005

Status

approved