|
| |
|
|
A090367
|
|
Shifts 1 place left under the INVERT transform of the BINOMIAL transform of the self-convolution cube of this sequence.
|
|
2
| |
|
|
1, 1, 5, 34, 276, 2509, 24739, 259815, 2873376, 33207790, 398897289, 4960652325, 63676368387, 841741913795, 11438028248093, 159536511439266, 2281321298635427, 33411684617642665, 500761214428795093
(list; graph; refs; listen; history; internal format)
|
|
|
|
OFFSET
| 0,3
|
|
|
FORMULA
| G.f.: A(x) = 1/(1 - A(x/(1-x))^3*x/(1-x) ).
|
|
|
PROG
| (PARI) {a(n)=local(A); if(n<0, 0, A=1+x+x*O(x^n); for(k=1, n, B=subst(A^3, x, x/(1-x))/(1-x)+x*O(x^n); A=1+x*A*B); polcoeff(A, n, x))}
|
|
|
CROSSREFS
| Cf. A090365, A090366.
Sequence in context: A081342 A058248 A116435 * A189488 A111557 A121323
Adjacent sequences: A090364 A090365 A090366 * A090368 A090369 A090370
|
|
|
KEYWORD
| nonn
|
|
|
AUTHOR
| Paul D. Hanna (pauldhanna(AT)juno.com), Nov 26 2003
|
| |
|
|