login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A027638 Order of 2^n X 2^n unitary group H_n acting on Siegel modular forms. 3
4, 96, 46080, 371589120, 48514675507200, 101643290713836748800, 3409750224676138896064512000, 1830483982118721406049481526345728000, 15723497752907010191583185709179507111362560000 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

REFERENCES

B. Runge, On Siegel modular forms I, J. Reine Angew. Math., 436 (1993), 57-85.

B. Runge, Codes and Siegel modular forms, Discrete Math. 148 (1996), 175-204.

LINKS

Table of n, a(n) for n=0..8.

Index entries for sequences related to modular groups

MAPLE

2^(n^2+2*n+2)*product(4^'i'-1, 'i'=1..n);

CROSSREFS

Equals A003956/2. Cf. A027672.

Sequence in context: A181335 A098695 A059201 * A041275 A024384 A180830

Adjacent sequences:  A027635 A027636 A027637 * A027639 A027640 A027641

KEYWORD

nonn,easy,nice

AUTHOR

N. J. A. Sloane.

STATUS

approved

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

License Agreements, Terms of Use, Privacy Policy .

Last modified February 17 22:32 EST 2018. Contains 299297 sequences. (Running on oeis4.)