1,6
Table of n, a(n) for n=1..19.
I. M. Wanless, A computer enumeration of small latin trades, Australas. J. Combin. 39, (2007) 247-258.
Cf. A007083.
Sequence in context: A244136 A338212 A337451 * A145382 A192423 A265584
Adjacent sequences: A133165 A133166 A133167 * A133169 A133170 A133171
nonn,more
Ian Wanless, Oct 11 2007
approved