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

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

Offset: 0

Author

N. J. A. Sloane

Keywords

• nonn

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).

Crossrefs

Cf. A001029.

Programs

Magma

[19^(5*n+1): n in [0..10]]; // Vincenzo Librandi, May 27 2011

Mathematica

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

Formula

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