login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A115192 Sixth diagonal (M=6) of triangle A115154 (called Y(3,1)). 1

%I

%S 1,1093,22417,333244,4380151,54231244,649940212,7643456248,

%T 88872211096,1026178892443,11798983030675,135327222190240,

%U 1550024200441495,17743256268685240,203091320580519760,2325213813771735940

%N Sixth diagonal (M=6) of triangle A115154 (called Y(3,1)).

%F a(n)= A115154(n+5,n+1), n>=0.

%F G.f.: ((-3+36*x-81*x^2+ 2*x^5) + 3*(1-15*x+54*x^2-27*x^3)*c(3*x))/((2+x)*x^5), with the o.g.f. c(x) of A000108 (Catalan).

%K nonn,easy

%O 0,2

%A _Wolfdieter Lang_, Feb 23 2006

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

License Agreements, Terms of Use, Privacy Policy. .

Last modified July 28 19:21 EDT 2021. Contains 346335 sequences. (Running on oeis4.)