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A094737 Number of connected 5-element multiantichains on a labeled n-set. 0
0, 1, 1, 19, 387, 12796, 588332, 30409555, 1510137553, 68451901642, 2839832714238, 109655179461961, 4007814663515939, 140559147215148208, 4779718456846032064, 158823449312897655487, 5186933187595033751445 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,4

LINKS

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

FORMULA

E.g.f.: (1/5!)*(exp(31*x)-20*exp(23*x)+60*exp(19*x)+20*exp(17*x)+5*exp(16*x)-85*exp(15*x)-120*exp(14*x)+150*exp(13*x)+180*exp(12*x)-540*exp(11*x)-110*exp(10*x)+860*exp(9*x)+160*exp(8*x)-735*exp(7*x)+1110*exp(6*x)-2106*exp(5*x)-1095*exp(4*x)+6665*exp(3*x)-7090*exp(2*x)+3434*exp(x)-744).

CROSSREFS

Cf. A094033-A094037, A094729-A094738.

Sequence in context: A158592 A072359 A222835 * A009075 A221584 A015694

Adjacent sequences:  A094734 A094735 A094736 * A094738 A094739 A094740

KEYWORD

nonn,changed

AUTHOR

Goran Kilibarda, Vladeta Jovovic, May 24 2004

STATUS

approved

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Last modified May 21 03:53 EDT 2013. Contains 225474 sequences.