1,6
I. M. Wanless, A computer enumeration of small latin trades, Australas. J. Combin. 39, (2007) 247-258.
Cf. A007083.
Sequence in context: A142888 A068439 A133171 * A184828 A053286 A008826
Adjacent sequences: A133174 A133175 A133176 * A133178 A133179 A133180
nonn
Ian Wanless (ian.wanless(AT)sci.monash.edu.au), Oct 11 2007