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A145164 G.f. A(x) satisfies A(x/A(x)) = 1/(1-x)^4. 2
1, 4, 26, 268, 3851, 69308, 1459552, 34513468, 893162569, 24873809192, 736914860764, 23034718900652, 755096654861093, 25838920473462512, 919688365896843632, 33951797935609852260, 1296987353334993492885 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..16.

FORMULA

Self-convolution 4th power of A145162.

Self-convolution square of A145163.

PROG

(PARI) {a(n)=local(A=1+x+x*O(x^n), B); for(n=0, n, B=serreverse(x/A); A=1/(1-B)^4); polcoeff(A, n)}

CROSSREFS

Cf. A145162, A145163.

Sequence in context: A002465 A248668 A079473 * A113078 A177451 A304864

Adjacent sequences:  A145161 A145162 A145163 * A145165 A145166 A145167

KEYWORD

nonn

AUTHOR

Paul D. Hanna, Oct 03 2008

STATUS

approved

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Last modified April 12 19:50 EDT 2021. Contains 342932 sequences. (Running on oeis4.)