Triangle T(n,k) giving the number of simple matroids of rank k on n labeled points (n >= 2, 2 <= k <= n).
A058720
Triangle T(n,k) giving the number of simple matroids of rank k on n labeled points (n >= 2, 2 <= k <= n).
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =5a(5) =1a(6) =1a(7) =31a(8) =16a(9) =1a(10) =1a(11) =352a(12) =337a(13) =42a(14) =1a(15) =1a(16) =8389a(17) =18700a(18) =2570a(19) =99a(20) =1a(21) =1a(22) =433038a(23) =7642631a(24) =907647a(25) =16865a(26) =219a(27) =1
External references
- oeis: A058720