Number T(n,k) of inequivalent n X n matrices using exactly k different symbols, where equivalence means permutations of rows or columns or the symbol set; triangle T(n,k), n>=0, 0<=k<=n^2, read by rows.
A242106
Number T(n,k) of inequivalent n X n matrices using exactly k different symbols, where equivalence means permutations of rows or columns or the symbol set; triangle T(n,k), n>=0, 0<=k<=n^2, read by rows.
Terms
- a(0) =1a(1) =0a(2) =1a(3) =0a(4) =1a(5) =4a(6) =3a(7) =1a(8) =0a(9) =1a(10) =17a(11) =121a(12) =269a(13) =241a(14) =100a(15) =24a(16) =3a(17) =1a(18) =0a(19) =1a(20) =172a(21) =15239a(22) =316622a(23) =1951089a(24) =4820228a(25) =5769214a(26) =3768929a(27) =1451594a(28) =347251a(29) =53628
External references
- oeis: A242106