Number of isomorphism classes of kei (involutory quandles) of order n.

A178432

Number of isomorphism classes of kei (involutory quandles) of order n.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =3a(4) =5a(5) =13a(6) =41a(7) =142a(8) =665a(9) =4288a(10) =36455a(11) =436672a(12) =6926801

External references