Number of self-dual combinatorial configurations of type (n_3).
A100001
Number of self-dual combinatorial configurations of type (n_3).
Terms
- a(0) =0a(1) =0a(2) =0a(3) =0a(4) =0a(5) =0a(6) =1a(7) =1a(8) =3a(9) =10a(10) =25a(11) =95a(12) =366a(13) =1433a(14) =5802a(15) =24105a(16) =102479a(17) =445577a(18) =1992044
External references
- oeis: A100001