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!)
A124470 Row sums of the triangle A124469, in which row n equals the inverse binomial transform of column n in the triangle A124460. 1

%I #3 Mar 30 2012 18:37:01

%S 1,2,5,16,63,288,1461,8013,46896,290916,1905162,13131193,95005565,

%T 719862361,5700083435,47075439047,404760508374,3617018777976,

%U 33539368302476,322222320833572,3202873385842352,32895350423011349

%N Row sums of the triangle A124469, in which row n equals the inverse binomial transform of column n in the triangle A124460.

%C In table A124460, the g.f. of row n, R_n(y), simultaneously satisfies: R_n(y) = Sum_{k>=0} y^k * R_k(y)^n for n>=0.

%o (PARI) {a(n)=local(R=vector(n+2,r,vector(n+2,c,binomial(r+c-2,c-1)))); for(i=0,n,for(r=0,n,R[r+1]=Vec(sum(c=0,n,x^c*Ser(R[c+1])^r+O(x^(n+1)))))); subst(truncate(subst(Ser(vector(n+1,j,R[j][n+1])),x,x/(1+x))/(1+x)),x,1)}

%Y Cf. A124469, A124460.

%K nonn

%O 0,2

%A _Paul D. Hanna_, Nov 03 2006

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 07:30 EDT 2024. Contains 371235 sequences. (Running on oeis4.)