1,3
See article for precise definition and an explicit formula.
Skip Garibaldi, A1-invariant quadratic forms, arXiv math.RT/0702731.
Sequence in context: A033335 A133817 A131876 this_sequence A103241 A094501 A090636
Adjacent sequences: A126067 A126068 A126069 this_sequence A126071 A126072 A126073
nonn
N. J. A. Sloane (njas(AT)research.att.com), Mar 12 2007
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