Number of chiral immersions of oriented circle into oriented sphere with 2n double points.

A268566

Number of chiral immersions of oriented circle into oriented sphere with 2n double points.

Terms

    a(0) =0a(1) =1a(2) =16a(3) =564a(4) =27231a(5) =1625324a(6) =110854838a(7) =8306977585a(8) =667683610221

External references