A198848 11*6^n-1.

10, 65, 395, 2375, 14255, 85535, 513215, 3079295, 18475775, 110854655, 665127935, 3990767615, 23944605695, 143667634175, 862005805055, 5172034830335, 31032208982015, 186193253892095, 1117159523352575, 6702957140115455, 40217742840692735

Offset

0,1

Links

Vincenzo Librandi, Table of n, a(n) for n = 0..1000

Index entries for linear recurrences with constant coefficients, signature (7,-6).

Formula

a(n) = 6*a(n-1)+5. a(n) = 7*a(n-1)-6*a(n-2), n>1.

Prog

(Magma) [11*6^n-1: n in [0..30]]

Crossrefs

Sequence in context: A291231 A097791 A212259 * A215764 A262342 A307144

Adjacent sequences: A198845 A198846 A198847 * A198849 A198850 A198851

Keyword

nonn,easy

Author

Vincenzo Librandi, Oct 31 2011

Status

approved