Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A124613
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A124613 Poincare series P(C_{5,2}; x). +0
1
1, 2, 6, 14, 34, 74, 159, 324, 657, 1286, 2488, 4702, 8790, 16146, 29326, 52526, 93064, 162910, 282267, 483792, 821182, 1380052, 2297972, 3791220, 6200379, 10053018, 16165158, 25782702, 40801449, 64075416, 99882597, 154577022, 237551012, 362577214, 549750200 (list; graph; listen)
OFFSET

0,2
LINKS

Dragomir Z. Djokovic, Poincare series of some pure and mixed trace algebras of two generic matrices. See Tables 3 and 5.

FORMULA

G.f.: f/g where

f = x^40+2*x^39-6*x^37-9*x^36+2*x^35+25*x^34+38*x^33+17*x^32-34*x^31-68*x^30-34*x^29+73*x^28+176*x^27+171*x^26+

34*x^25-127*x^24-156*x^23-2*x^22+218*x^21+322*x^20+218*x^19-2*x^18-156*x^17-127*x^16+34*x^15+171*x^14+176*x^13+

73*x^12-34*x^11-68*x^10-34*x^9+17*x^8+38*x^7+25*x^6+2*x^5-9*x^4-6*x^3+2*x+1,

g = (1-x^2)^6*(1-x^3)^8*(1-x^4)^6*(1-x^5)^6.

CROSSREFS

Sequence in context: A089351 A005380 A124612 this_sequence A124614 A070933 A059570

Adjacent sequences: A124610 A124611 A124612 this_sequence A124614 A124615 A124616

KEYWORD

nonn

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com), Dec 21 2006

page 1

Search completed in 0.002 seconds

Lookup | Welcome | Find friends | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
More pages | Superseeker | Maintained by N. J. A. Sloane (njas@research.att.com)

Last modified December 10 12:37 EST 2009. Contains 170569 sequences.

AT&T Labs Research

Legal Notice
© 2009 AT&T Intellectual Property. All Rights Reserved.