

A003956


Order of complex Clifford group of degree 2^n arising in quantum coding theory.


13



8, 192, 92160, 743178240, 97029351014400, 203286581427673497600, 6819500449352277792129024000, 3660967964237442812098963052691456000, 31446995505814020383166371418359014222725120000
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OFFSET

0,1


REFERENCES

B. Runge, Codes and Siegel modular forms, Discrete Math. 148 (1996), 175204.


LINKS

T. D. Noe, Table of n, a(n) for n = 0..20
A. R. Calderbank, E. M. Rains, P. W. Shor and N. J. A. Sloane, Quantum error correction via codes over GF(4), IEEE Trans. Inform. Theory, 44 (1998), 13691387.
G. Nebe, E. M. Rains and N. J. A. Sloane, The invariants of the Clifford groups, Des. Codes Crypt. 24 (2001), 99121.
G. Nebe, E. M. Rains and N. J. A. Sloane, SelfDual Codes and Invariant Theory, Springer, Berlin, 2006.
Index entries for sequences related to groups


MAPLE

2^(n^2+2*n+3)*product( 4^j1, j=1..n);


CROSSREFS

Cf. A014116, A014115, A001309, A027672. Equals twice A027638.
Sequence in context: A003435 A071303 A128406 * A204820 A041269 A172340
Adjacent sequences: A003953 A003954 A003955 * A003957 A003958 A003959


KEYWORD

nonn,easy,nice


AUTHOR

N. J. A. Sloane, Peter Shor


STATUS

approved



