The OEIS is supported by the many generous donors to the OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A028547 Character of extremal vertex operator algebra of rank 21. 0
 1, 0, 0, 5726, 76461, 751254, 5237281, 30375456, 151013415, 671169030, 2714707968, 10170955326, 35680451331, 118321420182, 373444988337, 1128414562478, 3279359068167, 9202440746982, 25016402118925, 66065997838176, 169904122645467, 426396466800736 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,4 REFERENCES G. Höhn, Selbstduale Vertexoperatorsuperalgebren und das Babymonster, Bonner Mathematische Schriften, Vol. 286 (1996), 1-85. LINKS Table of n, a(n) for n=0..21. G. Höhn (gerald(AT)math.ksu.edu), Selbstduale Vertexoperatorsuperalgebren und das Babymonster, Doctoral Dissertation, Univ. Bonn, Jul 15 1995 (pdf, ps). FORMULA G.f.: x^(2*r/24) * (B(x)^(2*r) - 2*r*B(x)^(2*r-24) - r*(47-2*r)*B(x)^(2*r-48) where B(x) = x^(-1/24) * Product_{k>=0} (1+x^(2*k+1)) = x^(-1/24) * A000700 and r = 21. - Sean A. Irvine, Feb 29 2020 CROSSREFS Cf. A000700. Sequence in context: A330208 A252422 A183647 * A224726 A043484 A163027 Adjacent sequences: A028544 A028545 A028546 * A028548 A028549 A028550 KEYWORD nonn,easy AUTHOR N. J. A. Sloane. EXTENSIONS More terms from Sean A. Irvine, Feb 29 2020 STATUS approved

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

Last modified August 15 04:20 EDT 2024. Contains 375172 sequences. (Running on oeis4.)