A013810 a(n) = 19^(4*n + 1).

19, 2476099, 322687697779, 42052983462257059, 5480386857784802185939, 714209495693373205673756419, 93076495688256089536609610280499, 12129821994589221844500501021364910179, 1580770532156861979997149793605296459437459

Offset

0,1

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 (130321).

Formula

a(n) = 19^A016813(n) = A001029(A016813(n)). - Wesley Ivan Hurt, Jan 28 2014

Maple

A013810:=n->19^(4*n + 1); seq(A013810(n), n=0..15); # Wesley Ivan Hurt, Jan 28 2014

Mathematica

Table[19^(4n + 1), {n, 0, 15}] (* Wesley Ivan Hurt, Jan 28 2014 *)
NestList[130321#&, 19, 20] (* Harvey P. Dale, Apr 12 2023 *)

Prog

(Magma) [19^(4*n+1): n in [0..15]]; // Vincenzo Librandi, Jul 06 2011

Crossrefs

Cf. A001029, A016813.

Sequence in context: A070632 A234039 A099114 * A172875 A172839 A177920

Adjacent sequences: A013807 A013808 A013809 * A013811 A013812 A013813

Keyword

nonn,easy

Author

N. J. A. Sloane

Status

approved