A013729 a(n) = 24^(2*n + 1).

24, 13824, 7962624, 4586471424, 2641807540224, 1521681143169024, 876488338465357824, 504857282956046106624, 290797794982682557415424, 167499529910025153071284224, 96479729228174488169059713024

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 (576).

Crossrefs

Cf. A013708-A013728.

Programs

Magma

[24^(2*n+1): n in [0..15]]; // Vincenzo Librandi, May 25 2011

Maple

seq(24^(2*n+1),n=0..10); # Nathaniel Johnston, Jun 26 2011

Mathematica

24^(2*Range[0, 15]+1) (* or *)
NestList[576*# &, 24, 15] (* Paolo Xausa, Feb 21 2024 *)

PARI

a(n)=24^(2*n+1) \\ Charles R Greathouse IV, Jul 11 2016

Formula

From Philippe Deléham, Nov 28 2008: (Start)

a(n) = 576*a(n-1); a(0)=24.

G.f.: 24/(1-576*x).

a(n) = A013713(n)*A013708(n). (End)