A196665 Expansion of (1-6x)/(1-19x).

1, 13, 247, 4693, 89167, 1694173, 32189287, 611596453, 11620332607, 220786319533, 4194940071127, 79703861351413, 1514373365676847, 28773093947860093, 546688785009341767, 10387086915177493573, 197354651388372377887, 3749738376379075179853

Offset

0,2

Links

Table of n, a(n) for n=0..17.

Index entries for linear recurrences with constant coefficients, signature (19).

Formula

a(0)=1, a(n)=13*19^(n-1) for n>0.

a(n)=Sum_0<=k<=n{A193722(n,k)*6^k}.

Crossrefs

Cf. A002001, A196660, A196661, A196662, A196663, A196664.

Sequence in context: A259420 A203156 A049665 * A027400 A053100 A320308

Adjacent sequences: A196662 A196663 A196664 * A196666 A196667 A196668

Keyword

nonn

Author

Philippe Deléham, Oct 05 2011

Status

approved