Number of incidences in the subgroup lattice of the symmetric group.
A218923
Number of incidences in the subgroup lattice of the symmetric group.
Terms
- a(0) =1a(1) =1a(2) =3a(3) =11a(4) =68a(5) =262a(6) =2261a(7) =14032a(8) =176245a(9) =1821103a(10) =30883491a(11) =415843982a(12) =10779423937a(13) =177718085432
External references
- oeis: A218923