A013788 a(n) = 8^(4*n + 1).

8, 32768, 134217728, 549755813888, 2251799813685248, 9223372036854775808, 37778931862957161709568, 154742504910672534362390528, 633825300114114700748351602688, 2596148429267413814265248164610048, 10633823966279326983230456482242756608

Offset

0,1

Links

Vincenzo Librandi, Table of n, a(n) for n = 0..200

Tanya Khovanova, Recursive Sequences

Index entries for linear recurrences with constant coefficients, signature (4096).

Formula

From Philippe Deléham, Dec 03 2008: (Start)

a(n) = 4096*a(n-1); a(0)=8.

G.f.: 8/(1-4096*x). (End)

Mathematica

8^(4Range[0, 20]+1)  (* Harvey P. Dale, Apr 17 2011 *)

Prog

(Magma) [8^(4*n+1): n in [0..15]]; // Vincenzo Librandi, Jun 28 2011
(PARI) a(n)=8^(4*n+1) \\ Charles R Greathouse IV, Jul 11 2016

Crossrefs

Subsequence of A001018.

Sequence in context: A115478 A221629 A362280 * A156178 A256423 A349113

Adjacent sequences: A013785 A013786 A013787 * A013789 A013790 A013791

Keyword

nonn,easy

Author

N. J. A. Sloane

Status

approved