Matroid Integer Sequences
The catalogue of matroids on up to 9 elements allows us to extend a number of the matroid integer sequences in Neil Sloane's Online Encyclopaedia of Integer Sequences.
- Unlabelled Matroids (A055545)
- Unlabelled Simple Matroids (A002773)
- Unlabelled Loopless Matroids (A058718)
- Unlabelled Binary Matroids (A121280)
If you want further numbers, you can perform your own searches by using the MatroidSeeker frontend to the database, which gives the numbers partitioned according to both size and rank.