|
|
EXAMPLE
| For n=4 we have A141268(4)=11 because
Set(Set(Z),Set(Z),Set(Z,Z)),
Set(Set(Z),Set(Set(Z),Set(Z,Z))),
Set(Z,Z,Z,Z),
Set(Set(Z,Z),Set(Z,Z)),
Set(Set(Set(Z),Set(Z)),Set(Z,Z)),
Set(Set(Z),Set(Z),Set(Set(Z),Set(Z))),
Set(Set(Z),Set(Z),Set(Z),Set(Z)),
Set(Set(Z),Set(Set(Z),Set(Z),Set(Z))),
Set(Set(Set(Z),Set(Z)),Set(Set(Z),Set(Z))),
Set(Set(Z),Set(Z,Z,Z)),
Set(Set(Z),Set(Set(Z),Set(Set(Z),Set(Z))))
|
|
|
MAPLE
| combstruct command: A141268 := [H, {H=Union(Set(Z, card>=1), Set(H, card>=2))}, unlabelled]; seq(count(Test, size=j), j=1..20);
|
