Number of orbits of the wreath product of S_n with S_n on n X n matrices over {0,1,2}.

A099121

Number of orbits of the wreath product of S_n with S_n on n X n matrices over {0,1,2}.

Terms

    a(0) =1a(1) =3a(2) =21a(3) =220a(4) =3060a(5) =53130a(6) =1107568a(7) =26978328a(8) =752538150a(9) =23667689815a(10) =828931106355

External references