Number of n-tuples where each entry is chosen from the subsets of {1,2,3,4} such that the intersection of all n entries contains exactly one element.

A128865

Number of n-tuples where each entry is chosen from the subsets of {1,2,3,4} such that the intersection of all n entries contains exactly one element.

Terms

    a(0) =4a(1) =108a(2) =1372a(3) =13500a(4) =119164a(5) =1000188a(6) =8193532a(7) =66325500a(8) =533731324a(9) =4282396668a(10) =34309431292a(11) =274676629500

External references