Triangle read by rows: T(n,k) = PIP(n,k) is the number of maximal families of sets from {1,2,...,n} with the property that if A and B are sets in the family, then |AB|>=k.

A248929

Triangle read by rows: T(n,k) = PIP(n,k) is the number of maximal families of sets from {1,2,...,n} with the property that if A and B are sets in the family, then |AB|>=k.

Terms

    a(0) =1a(1) =2a(2) =1a(3) =4a(4) =3a(5) =1a(6) =12a(7) =7a(8) =4a(9) =1a(10) =81a(11) =25a(12) =11a(13) =5a(14) =1a(15) =2646a(16) =216a(17) =46a(18) =16a(19) =6a(20) =1a(21) =1422564a(22) =12784a(23) =477a(24) =77a(25) =22a(26) =7a(27) =1a(28) =229809982112a(29) =11115851

External references