Number of different energy states between two stacked necklaces, each of n positive and n negative charges.
A045612
Number of different energy states between two stacked necklaces, each of n positive and n negative charges.
Terms
- a(0) =1a(1) =2a(2) =5a(3) =18a(4) =71a(5) =538a(6) =2619a(7) =33052a(8) =233613a(9) =3153926a(10) =24581647
External references
- oeis: A045612