This site is supported by donations to The OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A098346 Consider the family of multigraphs enriched by the species of partitions. Sequence gives the triangle read by rows giving coefficients of polynomials arising from enumeration of those multigraphs on n edges of 5 different colors. 2

%I

%S 1,5,30,25,25,205,575,950,375,125,1555,11300,34175,31625,16375,3750,

%T 625,12880,219125,1231625,2137500,1771875,771875,209375,31250,3125,

%U 115155,4339525,44620150,134380625,176620625,121462500,50056250

%N Consider the family of multigraphs enriched by the species of partitions. Sequence gives the triangle read by rows giving coefficients of polynomials arising from enumeration of those multigraphs on n edges of 5 different colors.

%D G. Paquin, Dénombrement de multigraphes enrichis, Mémoire, Math. Dept., Univ. Québec à Montréal, 2004.

%H G. Paquin, <a href="/A038205/a038205.pdf">Dénombrement de multigraphes enrichis</a>, Mémoire, Math. Dept., Univ. Québec à Montréal, 2004. [Cached copy, with permission]

%e 1, 5x^2, 30x^2+25x^3+ 25x^4, 205x^2 +575x^3 +950x^4 +375x^5 +125x^6, 1555x^2+11300x^3 +34175x^4+31625x^5+16375x^6+3750x^7+625x^8, ...

%K nonn,tabf

%O 0,2

%A _N. J. A. Sloane_, Oct 26 2004

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified October 14 06:55 EDT 2019. Contains 327995 sequences. (Running on oeis4.)