A013906 a(n) = 23^(5*n + 1).

23, 148035889, 952809757913927, 6132610415680998648961, 39471584120695485887249589623, 254052654154149545721997685422868689, 1635170022196481349560959748587682926364327, 10524515126174167358877236351104092889324551536161, 67739389260745218861137988047774370539553852007909099223

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 (6436343).

Crossrefs

Cf. A009967, A016861.

Programs

Magma

[23^(5*n+1): n in [0..10]]; // Vincenzo Librandi, May 29 2011

Maple

A013906:=n->23^(5*n + 1); seq(A013906(n), n=0..10); # Wesley Ivan Hurt, Jan 30 2014

Mathematica

Table[23^(5n + 1), {n, 0, 10}] (* Wesley Ivan Hurt, Jan 30 2014 *)

Formula

a(n) = 6436343*a(n-1), a(0)=23. - Vincenzo Librandi, May 29 2011

a(n) = A009967(A016861(n)). - Wesley Ivan Hurt, Jan 30 2014

E.g.f.: 23*exp(6436343*x). - Alejandro J. Becerra Jr., Jun 27 2021