Number of projective pseudo order types: simple arrangements of pseudo-lines in the projective plane.
A006248
Number of projective pseudo order types: simple arrangements of pseudo-lines in the projective plane.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =4a(6) =11a(7) =135a(8) =4382a(9) =312356a(10) =41848591a(11) =10320613331
External references
- oeis: A006248