A013890 a(n) = 19^(5*n + 1).

19, 47045881, 116490258898219, 288441413567621167681, 714209495693373205673756419, 1768453418076865701195582595329481, 4378865740046709085864680868712732574619, 10842505080063916320800450434338728415281531281, 26847115986241183138017674520015691090350184323352819

Offset

0,1

Links

Vincenzo Librandi, Table of n, a(n) for n = 0..50

Tanya Khovanova, Recursive Sequences

Index entries for linear recurrences with constant coefficients, signature (2476099).

Formula

a(n) = 2476099*a(n-1), a(0)=19. - Vincenzo Librandi, May 27 2011

Mathematica

NestList[2476099#&, 19, 20] (* Harvey P. Dale, Dec 23 2016 *)

Prog

(Magma) [19^(5*n+1): n in [0..10]]; // Vincenzo Librandi, May 27 2011
(PARI) a(n)=19^(5*n+1) \\ Charles R Greathouse IV, May 31 2026

Crossrefs

Cf. A001029.

Sequence in context: A145308 A087515 A038028 * A347353 A128400 A211378

Adjacent sequences: A013887 A013888 A013889 * A013891 A013892 A013893

Keyword

nonn,easy

Author

N. J. A. Sloane

Status

approved