|
Search: id:A124465
|
|
| |
|
| 1, 6, 26, 111, 506, 2437, 12118, 61499, 317485, 1666371, 8891543, 48221602, 265708512, 1486905853, 8446728295, 48690214869, 284692228671, 1687855348715, 10143257898587, 61768997909283, 381059689323080, 2380852983417944
(list; graph; listen)
|
|
|
OFFSET
|
0,2
|
|
|
FORMULA
|
G.f.: A(x) = Sum_{n>=0} x^n*R_n(x)^5, where R_n(x) is the g.f. of row n in table A124460 and satisfies: R_n(x) = Sum_{k>=0} x^k * R_k(x)^n for n>=0.
|
|
PROGRAM
|
(PARI) {a(n)=local(m=max(n, 5), R=vector(m+1, r, vector(m+1, c, binomial(r+c-2, c-1)))); for(i=0, m, for(r=0, m, R[r+1]=Vec(sum(c=0, m, x^c*Ser(R[c+1])^r+O(x^(m+1)))))); R[6][n+1]}
|
|
CROSSREFS
|
Cf. A124460 (table); other rows: A124461, A124462, A124463, A124464, A124466.
Sequence in context: A079675 A113991 A145374 this_sequence A164549 A046647 A046233
Adjacent sequences: A124462 A124463 A124464 this_sequence A124466 A124467 A124468
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
Paul D. Hanna (pauldhanna(AT)juno.com), Nov 03 2006
|
|
|
Search completed in 0.005 seconds
|
