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A127394 Number of irreducible representations of Sp(2n,R) with same infinitesimal character as the trivial representation. 0
4, 18, 88, 460, 2544, 14776, 89632, 565392, 3695680, 24959776, 173752704, 1244125888, 9146568448, 68933546880, 531838104064, 4195358822656, 33800254620672, 277843218452992, 2328182040156160, 19870770461838336, 172610363453599744, 1525013813211609088 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

REFERENCES

J. Adams and F. du Cloux, Algorithms for representation theory of real reductive groups, arXiv:math/0701166.

FORMULA

E.g.f.: 2*(x+2)*exp(x*(x+4)).

CROSSREFS

Sequence in context: A081671 A006629 A068764 * A046984 A129323 A000305

Adjacent sequences:  A127391 A127392 A127393 * A127395 A127396 A127397

KEYWORD

nonn

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com), Apr 01 2007

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Last modified February 13 21:09 EST 2012. Contains 205561 sequences.