Antichains (or order ideals) in the poset 2*2*7*n or size of the distributive lattice J(2*2*7*n).
A056934
Antichains (or order ideals) in the poset 2*2*7*n or size of the distributive lattice J(2*2*7*n).
Terms
- a(0) =1a(1) =540a(2) =75966a(3) =4701698a(4) =164489084a(5) =3764727340a(6) =61951251333a(7) =782318812002
External references
- oeis: A056934