1,6
I. M. Wanless, A computer enumeration of small latin trades, Australas. J. Combin. 39, (2007) 247-258.
Cf. A007083.
Sequence in context: A088729 A068439 A133171 this_sequence A053286 A008826 A103440
Adjacent sequences: A133174 A133175 A133176 this_sequence A133178 A133179 A133180
nonn
Ian Wanless (ian.wanless(AT)sci.monash.edu.au), Oct 11 2007
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