Number of smooth, equivalently rationally smooth, Schubert varieties of type D_n.
A224243
Number of smooth, equivalently rationally smooth, Schubert varieties of type D_n.
Terms
- a(0) =4a(1) =22a(2) =108a(3) =490a(4) =2164a(5) =9474a(6) =41374a(7) =180614a(8) =788676a(9) =3445462a(10) =15059202a(11) =65847946a(12) =288033326a(13) =1260313930a(14) =5516051890a(15) =24147542122a(16) =105729680608a(17) =463006798298
External references
- oeis: A224243