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COMMENTS
| Next term has 136 digits. [Sean A. Irvine, Jan 20, 2012]
Number of equivalence classes with GL_n(Z_2) operating on the domain and symmetric group of 2 variables operating on the range. [Sean A. Irvine, Jan 20, 2012]
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REFERENCES
| M. A. Harrison, On the number of classes of switching networks, J. Franklin Instit., 276 (1963), 313-327.
N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 (includes this sequence).
N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
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