login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A147725 Row sums of triangle in A147724. 1

%I #7 Jan 03 2024 08:44:17

%S 1,2,10,68,502,3770,28408,214202,1615330,12181748,91867102,692804690,

%T 5224704088,39401485202,297141621850,2240858259428,16899166494502,

%U 127443057596810,961096686931768,7247996548821002,54659905383139570

%N Row sums of triangle in A147724.

%F a(n)=9*a(n-1)-11*a(n-2) for n>2, a(0)=1, a(1)=2, a(2)=10. G.f.: (1-7x+3x^2)/(1-9x+11x^2).

%K nonn

%O 0,2

%A _Philippe Deléham_, Nov 15 2008

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified March 28 18:04 EDT 2024. Contains 371254 sequences. (Running on oeis4.)