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A055740 Sum of fourth powers of coefficients in full expansion of (z1+z2+...+zn)^n. 0
1, 18, 1785, 591460, 495872505, 882463317636, 2956241639184631, 17088644286346128840, 159584255348964655673745, 2286523844910576580400966980, 48220116744252542032928364578451 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..11.

FORMULA

a(n) is coefficient of x^n in expansion of n!^4*(1+x/1!^4+x^2/2!^4+x^3/3!^4+...+x^n/n!^4)^n.

CROSSREFS

Cf. A033935.

Sequence in context: A086193 A064347 A067303 * A072477 A019522 A068181

Adjacent sequences:  A055737 A055738 A055739 * A055741 A055742 A055743

KEYWORD

nonn,changed

AUTHOR

Vladeta Jovovic, Jun 09 2000

STATUS

approved

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Last modified May 23 00:23 EDT 2013. Contains 225585 sequences.