A013888 a(n) = 18^(5*n + 3).

5832, 11019960576, 20822964865671168, 39346408075296537575424, 74347713614021927913318776832, 140485060518220186283313934500888576, 265456074833292280954988944586975024775168, 501597304410594428739556550045321223614364647424

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 (1889568).

Crossrefs

Cf. A001027.

Programs

Magma

[18^(5*n+3): n in [0..10]]; // Vincenzo Librandi, May 27 2011

Mathematica

18^(5Range[0,20]+3) (* or *) NestList[1889568#&,5832,20] (* Harvey P. Dale, Jan 27 2023 *)

Formula

a(n) = 1889568*a(n-1), a(0)=5832. - Vincenzo Librandi, May 27 2011