A013832 a(n) = 4^(5*n + 3).

64, 65536, 67108864, 68719476736, 70368744177664, 72057594037927936, 73786976294838206464, 75557863725914323419136, 77371252455336267181195264, 79228162514264337593543950336, 81129638414606681695789005144064

Offset: 0

Author

N. J. A. Sloane

Keywords

• nonn
• easy

Links

• Vincenzo Librandi, Table of n, a(n) for n = 0..100
• Tanya Khovanova, Recursive Sequences
• Index entries for linear recurrences with constant coefficients, signature (1024).

Programs

Magma

[4^(5*n+3): n in [0..15]]; // Vincenzo Librandi, Jul 07 2011

Mathematica

4^(5*Range[0,20]+3) (* or *) NestList[1024#&,64,20] (* Harvey P. Dale, May 28 2013 *)

Maxima

makelist(4^(5*n+3),n,0,20); /* Martin Ettl, Oct 21 2012 */

PARI

a(n)=4^(5*n+3) \\ Charles R Greathouse IV, Jul 11 2016

Formula

From Philippe Deléham, Nov 30 2008: (Start)

a(n) = 1024*a(n-1); a(0)=64.

G.f.: 64/(1-1024*x).

a(n) = 4*A013831(n). (End)